Robot-assisted radical prostatectomy commonly takes around two to three hours, although the actual duration varies according to the planned procedure and your anatomy. Reported timings may also differ because hospitals and research studies define operating time in different ways.
It is important to understand that the time spent in the operating theatre is often longer than the actual surgical procedure. You may be away from the ward for several hours because the process also includes going to sleep, positioning for surgery, robotic set-up, waking up afterwards, and recovery-room monitoring before you return to your room.
A longer operation does not necessarily mean that something has gone wrong. Your surgery may take extra time because of factors such as the size of your prostate, previous abdominal surgery, scar tissue, body shape, lymph node removal, or the need for careful nerve-sparing and reconstruction.
What Is the Usual Length of Robotic Prostate Surgery?
A robot-assisted radical prostatectomy commonly takes around two to three hours. Some NHS patient-information leaflets describe the operation as taking approximately two to three hours. Cambridge University Hospitals gives an approximate surgical time of two and a half hours, while other centres advise that individual procedures may be shorter or longer.
This is only a general guide rather than a fixed timescale. Some operations are completed more quickly, while others take longer because your surgeon may need extra time to perform the procedure safely and carefully.
Your surgeon is the best person to estimate how long your operation is likely to take. They will consider factors such as your prostate size, cancer characteristics, previous abdominal surgery, anatomy, and whether any additional procedures are planned.
Why You May Be Away From the Ward for Longer
Cambridge University Hospitals advises its patients that an operation lasting approximately two and a half hours may involve around five hours away from the ward once preparation, anaesthesia and recovery are included. Your hospital’s timings may differ.
This time covers preparation before surgery, anaesthesia, positioning on the operating table, equipment checks, robotic set-up, the operation itself, waking up afterwards, and recovery-room monitoring. For your family, this can feel like a long wait, even though much of the time is spent on routine care rather than the surgery itself.
Knowing this in advance can help you and your family understand what to expect on the day of your operation. It also helps reassure everyone that a longer time away from the ward does not necessarily mean there has been a problem during surgery.
What Counts as Operation Time?
Operation time usually refers to the period from the start of the surgical procedure until it is completed. However, you may find that different hospitals and research studies use slightly different ways of measuring this time.
Some hospitals calculate operation time from the first skin incision to wound closure, while others report the console time, which is the period your surgeon spends operating using the robotic system. This is one reason why published operation times can vary.
When comparing timings, check whether the figure refers to total operating-room time, incision-to-closure time, robotic console time or the complete period away from the ward. Two hospitals may perform similar procedures but report different durations because they measure different stages.
Stages of the Surgical Journey
| Part of the surgical journey | What it includes | Why the time varies |
| Preoperative preparation | Checks, anaesthesia and airway management | Health conditions and monitoring requirements |
| Positioning and robotic set-up | Safe positioning, port placement and docking | Body shape, anatomy, scar tissue and team workflow |
| Prostate removal | Dissection of the prostate and seminal vesicles | Prostate size, cancer location and tissue planes |
| Additional procedures | Lymph-node dissection, NeuroSAFE or other planned steps | Cancer risk and selected surgical technique |
| Reconstruction | Reconnecting the bladder and urethra | Anatomy, tissue quality and the complexity of the join |
| Recovery-room care | Waking from anaesthesia and postoperative monitoring | Pain, nausea, vital signs and individual recovery |
Why Theatre Time Includes More Than Surgery
Before your surgeon begins the operation, the anaesthetic team carefully prepares you for surgery. You will be given a general anaesthetic, and your heart rate, blood pressure, oxygen levels, airway, and intravenous lines will all be checked and monitored.
Once you are asleep, the theatre team positions you safely and prepares the surgical area. Robotic prostate surgery requires precise positioning because the operation is performed deep within the pelvis, making careful preparation essential.
The surgical procedure only begins after these important steps have been completed. Although this adds to your overall theatre time, it is a routine part of the operation and helps ensure your safety throughout the procedure.
Anaesthesia Adds Time Before the Operation
Robotic prostate surgery is usually performed under a general anaesthetic, so you will be asleep throughout the procedure and will not feel the operation. Before surgery begins, the anaesthetic team carefully prepares you to ensure everything is as safe as possible.
This preparation includes giving anaesthetic medicines, securing your airway, setting up monitoring equipment, and making sure your body is stable before the operation starts. If you have conditions such as heart disease, lung disease, sleep apnoea, or kidney problems, these checks may take a little longer.
You are unlikely to remember this part of the process because it takes place after you have gone to sleep. However, it contributes to the total time your family or friends may be waiting while you are in the operating theatre.
Positioning Can Take Time
Once you are asleep, the theatre team carefully positions you on the operating table before the operation begins. During robotic prostate surgery, you are usually placed in a head-down position, which helps move the bowel away from the pelvis and gives your surgeon better access to the prostate.
Careful positioning is essential because you remain in the same position for several hours. Your arms, legs, pressure points, nerves, and eyes are all protected to reduce the risk of pressure injuries or nerve-related complications during the procedure.
Although this stage takes extra time, it is an important part of ensuring your safety. The theatre team follows detailed checks rather than rushing the process, helping to minimise avoidable problems before surgery begins.
Setting Up the Robot Takes Time
After you have been anaesthetised and positioned, your surgeon places the small ports through which the camera and instruments are inserted. The robotic system is then positioned, and its arms are connected to the ports in a process called docking.
The team checks that the instruments are working correctly and that your surgeon has a clear view inside the pelvis before the main prostate dissection begins. Port placement, docking and equipment checks all contribute to the total operating time.
If you are told your operation will take several hours, remember that this preparation is included in the overall theatre time. Even in experienced centres, docking and equipment checks take time, but they are an essential part of performing your surgery safely and accurately.
Why Prostate Removal Is Not One Simple Step
Although it may sound like a single procedure, removing the prostate involves several carefully planned stages. Your surgeon must separate the prostate from the bladder, seminal vesicles, rectum, blood vessels, nerves, pelvic floor, and urethra while working within a small space deep inside the pelvis.
Each step requires precision because many important structures lie close together. After the prostate has been removed, your surgeon reconnects the bladder to the urethra so that urine can pass normally once healing has taken place.
This is why robotic prostate surgery cannot be rushed. While you may naturally wonder how long the operation will take, the priority is safe cancer removal and careful reconstruction rather than completing the procedure as quickly as possible.
Prostate Size Can Affect Duration
The size of your prostate can influence how long robotic prostate surgery takes. A larger prostate may be more difficult to dissect and remove through the small keyhole incisions used during the procedure, which means your surgeon may need extra time to work safely.
Research has shown that a larger prostate volume is associated with longer operating times during robot-assisted radical prostatectomy. This is because the operation can be technically more demanding and requires careful dissection around nearby structures.
A larger prostate does not mean you cannot have robotic surgery or that the outcome will be poorer. It simply means your surgeon may need more time to complete the procedure carefully and achieve the best possible result.
Clinical Tip
Before surgery, ask whether the estimated duration refers to the operation itself, the complete time in the operating theatre or the total time you are likely to be away from the ward.
You can also ask whether your planned surgery includes pelvic lymph-node removal, bilateral or unilateral nerve-sparing, NeuroSAFE or another additional technique. These details may provide a more useful estimate than a general two-to-three-hour figure.
Body Shape and BMI Can Influence Time
Your body shape can also affect how long robotic prostate surgery takes. If you have a higher body mass index (BMI), access to the pelvis, port placement, positioning, and working deep within the pelvis can be more technically challenging for your surgeon.
A higher BMI has been associated with longer operating times in some studies because positioning, port placement and access to the pelvis may be more technically demanding. However, results vary between studies, and BMI alone cannot predict how long your operation will take.
If you have a higher BMI, your surgical team will consider positioning, port placement, anaesthetic requirements and access to the pelvis when planning the procedure. The priority is to perform your surgery safely and achieve the best possible outcome, rather than to finish the procedure as quickly as possible.
Previous Abdominal Surgery Can Add Complexity
If you have had previous abdominal or pelvic surgery, scar tissue, known as adhesions, may make robotic prostate surgery more complex. These adhesions can make it more difficult to place the surgical ports safely or reach the prostate during the operation.
Examples include previous bowel surgery, hernia repair, bladder surgery, major abdominal operations, or other pelvic procedures. Even if your surgery was many years ago, it can sometimes affect the surgical field and increase the technical difficulty of the procedure.
You should tell your surgeon about any previous operations before your procedure. This allows your surgical team to plan the safest approach and, if necessary, allow extra time to complete your operation carefully.
Previous surgery does not automatically make robotic prostatectomy substantially longer. The effect depends on the location and extent of the earlier operation, the amount of scar tissue present and whether adhesions need to be divided safely.
Lymph Node Removal Can Make Surgery Longer
Some men have a pelvic lymph node dissection at the same time as robotic prostate surgery. During this part of the procedure, nearby lymph nodes are removed and sent to the laboratory to check whether the cancer has spread beyond the prostate.
Pelvic lymph-node dissection may be recommended when the estimated risk of lymph-node involvement is high enough to make the information clinically useful. Pelvic lymph-node dissection adds a separate stage to the procedure and may therefore increase the total operating time.
Not everyone needs a pelvic lymph node dissection. Before your operation, your surgeon should explain whether this is planned, why it is recommended in your case, and how it may affect the length of your surgery.
Nerve-Sparing Can Affect the Timing
If it is safe to do so, your surgeon may perform nerve-sparing surgery to preserve the neurovascular bundles that run alongside the prostate. These nerves play an important role in erectile function, so preserving them can be beneficial for suitable patients.
Carefully separating these delicate nerves from the prostate requires precision and may add time to the operation. Although preserving the nerves is an important consideration, the main priority is always to remove the cancer safely and completely.
Whether nerve-sparing is possible depends on the location and extent of your cancer. If the cancer is close to one or both nerve bundles, your surgeon may need to adjust the surgical plan during the operation to achieve the best balance between cancer control and nerve preservation.
The effect on duration varies according to anatomy, cancer location, whether one or both sides are being preserved and the surgeon’s technique.
Specialist Techniques Can Change Operating Time
Some additional techniques can affect the duration of robotic prostatectomy. NeuroSAFE involves removing and rapidly examining tissue next to the erectile nerves while the operation is still in progress. The frozen-section process and any secondary tissue removal can add time to the procedure.
Retzius-sparing prostatectomy uses a different anatomical route to remove the prostate. Its operating time depends on the surgeon’s experience, patient anatomy and the precise technique used, and it should not automatically be described as longer than standard surgery.
A longer procedure does not establish that a specialist technique is better. The relevant question is whether it is suitable for your cancer and whether the anticipated benefits justify any additional complexity.
Reconstruction Takes Time
After your prostate has been removed, your surgeon carefully reconnects your bladder to your urethra. This connection, known as the vesicourethral anastomosis, allows urine to pass normally again once the area has healed and your urinary catheter has been removed.
Creating this join is one of the most delicate parts of the operation. Your surgeon uses precise stitching to form a secure, watertight connection that can heal properly around the catheter and support your recovery.
If you are wondering why robotic prostate surgery takes several hours, reconstruction is one of the main reasons. Removing the prostate is only one part of the procedure, and putting your urinary tract back together safely is just as important as removing the cancer.
Why the Surgeon May Slow Down Near the Apex
The apex is the lower part of your prostate, close to the urinary sphincter that helps control urine flow. This is one of the most delicate areas of the operation because it is important for both complete cancer removal and preserving urinary continence.
Your surgeon carefully divides the urethra and aims to preserve as much healthy tissue as it is safe to do. Working too quickly in this area could increase the risk of complications or affect your urinary control after surgery.
If your anatomy is more complex or your cancer is close to the apex, this part of the procedure may take longer. If you are told the operation required extra time, it often reflects your surgeon’s careful approach rather than a problem during the surgery.
Bleeding Can Affect Surgical Time
Robotic prostate surgery is often associated with lower blood loss than traditional open surgery, but some bleeding can still occur. Your prostate is surrounded by several blood vessels, and your surgeon carefully seals these during the operation to minimise blood loss.
If bleeding occurs, your surgeon may take extra time to identify and control the source before continuing. Although this can make the operation longer, it is a routine part of safe surgical practice and helps reduce the risk of complications.
Your risk of bleeding can be influenced by factors such as your medications, anatomy, prostate size, previous surgery, and the extent of the procedure. Before your operation, your healthcare team will advise you about stopping or adjusting any blood-thinning medicines if necessary.
Surgeon Experience Can Influence Duration
Experienced surgeons and theatre teams may develop more efficient and consistent workflows as they perform robotic prostatectomy regularly. However, completing an operation quickly is not the main measure of surgical quality.
Operating time should be considered alongside cancer control, surgical-margin results, complication rates, urinary continence, erectile-function outcomes, communication and long-term follow-up.
NICE recommends basing robotic systems in centres expected to perform at least 150 robot-assisted radical prostatectomies each year for cost-effectiveness. This recommendation does not mean that procedure volume alone guarantees better individual outcomes.
Hospital Workflow Also Matters
The length of your day in hospital is influenced by more than just the operation itself. Delays can occur because of theatre schedules, emergency cases, equipment checks, anaesthetic preparation, or recovery-room availability, even when your surgery takes the expected amount of time.
These routine delays can make the day feel much longer for both you and your family. While you are in theatre, your relatives may not receive updates during every stage because the clinical team is focused on providing safe care.
Before your operation, you may find it helpful to ask how your hospital keeps families informed. Some hospitals contact relatives once the surgery has finished, while others provide updates at different stages of the day.
Does a Longer Operation Mean a Worse Outcome?
A longer robotic prostate operation does not automatically mean a worse outcome. Your surgery may take extra time because your surgeon is working carefully around complex anatomy, preserving important structures, or carrying out additional planned procedures.
A longer procedure means more time under anaesthesia and in the surgical position, so the anaesthetic and theatre teams may need to consider additional monitoring and recovery needs. However, duration alone does not show whether the operation was successful or whether a complication occurred.
After your surgery, you can ask your surgeon whether the procedure was straightforward or whether any factors made it take longer than expected. The duration of the operation alone does not determine how successful your treatment has been.
Can Robotic Surgery Ever Be Shorter Than Expected?
Yes, some robotic prostate operations are completed more quickly than expected. If your anatomy is straightforward, your prostate is smaller, no pelvic lymph node dissection is required, and the procedure progresses smoothly, the overall operating time may be shorter.
A shorter operation does not mean your surgeon has rushed the procedure. Experienced surgical teams can perform each stage efficiently while maintaining the same high standards of safety and precision throughout the operation.
If your surgery is completed sooner than expected, this should be considered alongside your overall results. Your pathology report, recovery, PSA follow-up, urinary control, and other long-term outcomes are much more important than the length of the operation alone.
What Happens After the Operation Ends?
Once your robotic prostate surgery is complete, your surgeon removes the robotic instruments, undocks the robotic system, releases the gas used to inflate your abdomen, and closes the small incisions. These final steps are a routine part of the procedure before you leave the operating theatre.
You are then taken to the recovery area, where nurses and the anaesthetic team monitor you closely as you wake up. They check your breathing, blood pressure, oxygen levels, pain, nausea, urine output, and overall comfort to make sure you are recovering safely.
You may not return to the ward immediately after the operation has finished because you need time to recover from the anaesthetic. Once you are stable and comfortable, you will be transferred back to your room to continue your recovery.
How Long Before You Wake Up?
You will usually begin to wake up soon after the anaesthetic medicines are reduced or stopped. However, it can take a little longer before you feel fully awake, comfortable, and aware of your surroundings.
As the anaesthetic wears off, you may feel drowsy, have a dry mouth, feel bloated, or notice some soreness or temporary confusion. These effects are common after a general anaesthetic and major surgery, and they usually improve as you recover.
The recovery team will only transfer you back to the ward when it is safe to do so. They will make sure your pain is well controlled, your vital signs are stable, and you are recovering as expected before you leave the recovery area.
How Long Is the Hospital Stay?
Your hospital stay is separate from the length of the operation itself. Many people are discharged the day after robotic prostatectomy, although a longer stay may be needed depending on the hospital’s pathway, your health and your recovery.
Some men need to stay a little longer if they require additional monitoring, better pain control, support with their urinary catheter, or treatment for other medical conditions. Your healthcare team will assess your recovery and decide when it is safe for you to go home.
You will not be discharged based on time alone. Before you leave hospital, your team will make sure you are medically stable, able to move around safely, have manageable pain, and understand how to care for your catheter until it is removed.
How Long Does the Catheter Stay In?
After robotic prostate surgery, your urinary catheter remains in place while the connection between your bladder and urethra begins to heal. It is commonly removed after approximately seven to ten days, although the exact timing depends on your recovery and your hospital’s protocol.
Your healthcare team will arrange a follow-up appointment to remove the catheter when they are satisfied that the join has had enough time to heal. Some hospitals follow slightly different schedules, depending on their protocols and your recovery.
You should always follow the advice given by your specialist team. Do not try to remove, adjust, or flush your catheter unless you have been specifically instructed and trained to do so, as this could affect your recovery.
What If the Operation Takes Longer Than Planned?
If your robotic prostate surgery takes longer than expected, there are several possible explanations. Your surgeon may need extra time because of scar tissue, a larger prostate, complex anatomy, bleeding, pelvic lymph node removal, or a more detailed reconstruction to complete the procedure safely.
While you are in theatre, your family may become concerned if the operation lasts longer than expected. In many cases, however, a delay simply reflects the need to work carefully and does not necessarily mean that a complication has occurred.
The surgical team will usually update your relatives when appropriate. After your operation, you should ask your surgeon whether anything unexpected was found, what caused the procedure to take longer if it did, and how the surgery went overall.
Evidence Note
NHS patient-information leaflets commonly describe robot-assisted radical prostatectomy as taking approximately two to three hours. However, these timings are estimates rather than targets, and hospitals may measure the procedure differently.
Research suggests that factors such as prostate volume, higher BMI in some patient groups, robotic equipment problems and specialist steps such as NeuroSAFE can influence operating time. Their effects vary between patients, so no single factor can accurately predict how long an individual operation will take.
Key Takeaways
- Robot-assisted radical prostatectomy commonly takes around two to three hours.
- Your total time away from the ward is usually several hours longer than the operation itself.
- Hospitals and studies may define operating time differently.
- Anaesthesia, positioning, robotic set-up and recovery all add time.
- A larger prostate or complex anatomy may make surgery more demanding.
- Higher BMI has been linked with longer operating time in some, but not all, studies.
- Previous abdominal surgery does not automatically prolong the operation.
- Pelvic lymph-node removal and NeuroSAFE can add extra surgical steps.
- A longer operation does not necessarily mean that a complication has occurred.
- A shorter operation does not by itself prove a better result.
- Cancer control, safe reconstruction, complications and long-term recovery matter more than speed.
- Your surgeon is best placed to provide an estimate based on the procedure planned for you.
FAQs
1. How long does robotic prostate surgery usually take?
Robot-assisted radical prostatectomy commonly takes approximately two to three hours, although some procedures are shorter or longer. The estimate normally refers to the surgery itself rather than the complete period spent in the operating department.
2. Why was I away from the ward for so long?
You may be away from the ward for several hours longer than the operation itself because the total time includes anaesthesia, positioning, robotic preparation and recovery-room monitoring. Cambridge University Hospitals advises patients to expect approximately five hours away from the ward, but timings vary between hospitals.
3. Does a longer operation mean something went wrong?
Not necessarily. Your surgeon may simply need extra time because of factors such as a larger prostate, previous surgery, scar tissue, nerve-sparing, or lymph node removal. Taking longer often reflects a careful approach rather than a complication. Your surgeon can explain afterwards whether an additional planned step or unexpected difficulty affected the duration.
4. Will I be asleep throughout the operation?
Yes. Robotic prostate surgery is performed under a general anaesthetic, so you will be asleep throughout the procedure and will not be aware of the operation.
5. Can my prostate size affect how long the surgery takes?
Yes. A larger prostate can make the operation more technically demanding, so your surgeon may need additional time to remove it safely while protecting nearby structures.
6. How long will I stay in hospital after robotic prostate surgery?
Many people leave hospital the day after surgery, although a longer stay may be needed depending on your recovery, general health and the hospital’s usual pathway.
7. How long will I need a urinary catheter?
The catheter commonly remains in place for approximately seven to ten days. Your hospital may use a slightly different schedule depending on healing and local practice.
8. Does an experienced surgeon perform the operation more quickly?
Operating speed should be considered alongside audited cancer-control, continence, erectile-function and complication outcomes. However, the priority is always a safe operation and the best possible outcome, rather than completing the surgery as quickly as possible.
9. What should my family expect while I am in surgery?
Your family should expect you to be away for several hours. Hospitals often provide updates when appropriate, but longer waiting times are common and do not automatically mean there has been a problem.
10. What is more important than how long the operation takes?
The length of the operation is only one part of your treatment. Successful cancer removal, a smooth recovery, urinary continence, erectile function where possible, and your long-term PSA results are much more important than the exact number of hours spent in surgery.
Final Thoughts: Understanding the Time Behind Robotic Prostate Surgery
Robotic prostate surgery commonly takes around two to three hours, but the complete period spent away from the ward is usually longer because it includes anaesthesia, positioning, robotic preparation and postoperative monitoring. Prostate size, anatomy, scar tissue, lymph-node removal and specialist techniques can all affect the duration.
A longer procedure does not automatically mean that something has gone wrong. The priority is careful cancer removal, safe reconstruction and a smooth recovery rather than completing the operation within a fixed number of hours.
If you would like personalised information about the procedure, a consultation with an experienced robotic prostate surgery clinic in London can help you understand the surgical plan and what to expect on the day.
References:
- National Institute for Health and Care Excellence (NICE) (2019, last updated 2021; reviewed 2025) Prostate cancer: diagnosis and management. NICE guideline NG131. London: NICE. Available at: https://www.nice.org.uk/guidance/ng131
- Cambridge University Hospitals NHS Foundation Trust (2024) Robotic radical prostatectomy: pre- and post-operative information. Approved 10 May 2024. Available at: https://www.cuh.nhs.uk/patient-information/robotic-radical-prostatectomy/
- Kingston and Richmond NHS Foundation Trust (2026) Prostate removal (prostatectomy) with robot. Last updated 10 May 2026. Available at: https://www.kingstonandrichmond.nhs.uk/patients-and-families/patient-leaflets/prostate-removal-prostatectomy-robot
- Violette, P.D., Mikhail, D., Pond, G.R. and Pautler, S.E. (2015) ‘Independent predictors of prolonged operative time during robotic-assisted radical prostatectomy’, Journal of Robotic Surgery, 9(2), pp. 117–123. Available at: https://pubmed.ncbi.nlm.nih.gov/26531111/
- Chalasani, V., Martinez, C.H., Lim, D., Bareeq, R.A., Wignall, G.R., Stitt, L. and Pautler, S.E. (2010) ‘Impact of body mass index on perioperative outcomes during the learning curve for robot-assisted radical prostatectomy’, Canadian Urological Association Journal, 4(4), pp. 250–254. Available at: https://pubmed.ncbi.nlm.nih.gov/20694101/
- Dinneen, E., Haider, A., Grierson, J. et al. (2021) ‘NeuroSAFE frozen section during robot-assisted radical prostatectomy: peri-operative and histopathological outcomes from the NeuroSAFE PROOF feasibility randomised controlled trial’, BJU International, 127(6), pp. 676–686. Available at: https://pubmed.ncbi.nlm.nih.gov/32985121/