Your bowel can temporarily slow after your general anaesthetic, the physical stress of surgery, reduced activity and changes to how much you eat and drink. Some medicines used during your recovery can also contribute.
You may therefore take several days to have your first bowel movement. This can be part of your expected early recovery if you are otherwise comfortable, passing wind and able to eat and drink.
Can Your Pain Medication Cause Constipation?
Yes. Some of your pain medicines, particularly opioids, can slow your bowel and make your stools harder or more difficult to pass.
You should use your pain relief according to your discharge instructions rather than changing it simply because you are constipated. If your constipation is troublesome, you should ask your surgical team, GP or pharmacist whether your pain medicines or bowel treatment need adjusting.
How Long Can Your Bowels Take to Open?
Your bowels may take around three to four days to open after robotic radical prostatectomy. This can be expected during your early recovery if you otherwise feel well and your symptoms are not getting progressively worse.
You should follow your discharge instructions and take any prescribed laxatives as directed. You should contact your clinical team if your bowels remain closed beyond the expected period or you develop increasing pain, abdominal swelling, vomiting or an inability to pass wind.
Bowel Recovery After Your Surgery
| Your Situation | What It May Mean | What You Should Do |
| Your bowels have not opened during your first few days | Your bowel may still be recovering from surgery and anaesthesia | Continue your prescribed recovery plan |
| You are passing wind and otherwise feel well | Your bowel is showing signs of activity | Continue gentle walking, suitable fluids and prescribed laxatives |
| Your constipation continues despite treatment | Your bowel may need additional support | Contact your clinical team, GP or pharmacist |
| Your abdomen becomes increasingly swollen or painful | Your symptoms may be more than uncomplicated constipation | Seek prompt medical advice |
| You cannot pass wind and are repeatedly vomiting | Your symptoms may indicate postoperative ileus or bowel obstruction | Seek urgent medical assessment |
Why Should You Avoid Straining?
You should avoid excessive straining while opening your bowels because your abdominal and pelvic tissues are still recovering from surgery. Keeping your stools soft can reduce discomfort and unnecessary pressure during your early recovery.
Your aim should be a comfortable bowel movement rather than forcing your bowels to open. Taking your prescribed laxatives and following your dietary, fluid and activity advice can help.
Should You Take the Laxatives You Were Given?
Yes. If your surgical team prescribed laxatives when you left hospital, you should take them according to your discharge instructions. Their purpose is to help keep your stools soft and reduce your need to strain.
You should contact your clinical team, GP or pharmacist if your laxatives are causing troublesome side effects or your constipation is not improving. You should not repeatedly increase your dose or add additional laxatives without appropriate advice.
What Types of Laxatives May Be Used?
Different laxatives work in different ways. Your postoperative treatment may use a medicine that softens your stools, draws water into your bowel or stimulates bowel movement.
The most appropriate option for you depends on your symptoms, medicines, health and discharge plan. You should follow the specific laxative regimen provided by your surgical team rather than choosing additional treatments independently.
How Quickly Do Your Laxatives Work?
The time your laxative takes to work depends on which type you have been prescribed. Some treatments act within several hours, while others may take one or more days to produce their full effect.
You should follow the instructions for your particular medicine. If your constipation persists despite using it correctly, you should seek advice rather than repeatedly increasing your dose yourself.
Why Is Drinking Enough Important?
Appropriate fluid intake can help keep your stools softer and support normal bowel function during your recovery. Your fluid needs also matter if you are taking certain laxatives.
You should follow your postoperative fluid advice and any individual restrictions that apply to you. If you have heart, kidney or another condition affecting how much you should drink, you should follow your clinical team’s specific recommendations.
Which Foods May Help?
Your fruit, vegetables and wholegrain foods can provide fibre that supports normal bowel function. Prunes may also help some people because they contain fibre and naturally occurring sorbitol.
You should increase your fibre gradually and according to your tolerance. If you are already significantly bloated or your abdomen is increasingly swollen, you should seek advice rather than simply adding large amounts of fibre.
Can Walking Help Your Constipation?
Yes. Your gentle movement can encourage normal bowel activity and forms an important part of recovery after surgery. Short, comfortable walks can be increased gradually as your strength returns.
Walking may also help your postoperative bloating. You should avoid strenuous exercise and heavy lifting until your surgical team advises that these activities are safe.
Should You Stay in Bed Until Your Bowels Open?
No. You should rest when you need to, but prolonged inactivity can contribute to constipation and does not usually support your overall recovery.
You should undertake regular gentle movement according to your postoperative instructions. Your activity should remain comfortable and should increase gradually rather than becoming strenuous.
Can Bloating Be Caused by Constipation?
Constipation can make your abdomen feel full, tight or swollen. This can add to the gas-related bloating that is already common after robotic surgery.
- Abdominal fullness: Constipation can cause your abdomen to feel heavy, tight or uncomfortable
- Gas build-up: Slower bowel movements can contribute to trapped gas and increase your feeling of bloating
- Bowel movements: Your bloating may improve as your bowels begin to move more regularly
- Fluid and diet: Drinking enough fluids and following the dietary advice given by your healthcare team may support bowel function
- Persistent symptoms: Ongoing or worsening bloating should be discussed with your healthcare team
Constipation-related bloating often improves as your bowel function returns to normal after surgery. If your symptoms persist, become severe or are accompanied by other concerning symptoms, you should seek medical advice.
Can Your Catheter Affect Your Bowels?
Your catheter does not normally cause constipation directly, but discomfort or concern about moving with it may make you less active. Your reduced activity can contribute to slower bowel function during your early recovery.
You should continue gentle walking while following your catheter-care instructions. If your catheter stops draining, you should check for simple problems such as kinked tubing and contact your clinical team promptly if normal drainage does not resume.
Can Constipation Affect Your Urinary Symptoms?
Your constipation can increase pressure within your pelvis and may make your bladder discomfort, urgency or catheter symptoms more noticeable. A very full bowel may also interfere with your catheter drainage in some circumstances.
You should keep your stools soft and follow your prescribed bowel plan, but you should not assume that constipation is the cause if your catheter stops draining. You should seek prompt advice if your catheter drainage does not resume after checking the tubing and bag position.
What If You Develop Haemorrhoids?
Your hard stools and straining can aggravate existing haemorrhoids, and they may become more uncomfortable during your postoperative recovery.
You should keep your stools soft and seek advice from your GP or pharmacist if you develop troublesome pain, itching or bleeding. You should not automatically assume that significant or persistent rectal bleeding is caused by haemorrhoids.
Can You Use a Suppository or Enema?
You should check with your surgical team before using a suppository, enema or another rectal treatment during your early recovery. Your individual postoperative instructions and the reason for your constipation should guide whether this is appropriate.
If your prescribed oral treatment is not working, you should ask your surgical team, GP or pharmacist what to use next rather than adding a rectal treatment yourself.
When Should Your Constipation Be Medically Reviewed?
You should contact your clinical team, GP or pharmacist if your constipation is not improving despite following your prescribed treatment or if it continues to cause substantial abdominal discomfort or bloating.
You should also have persistent or unexplained rectal bleeding, a significant new change in your bowel habits or other unusual bowel symptoms medically assessed rather than assuming they are simply part of your prostate-surgery recovery.
When Could Your Symptoms Be More Serious?
You should seek prompt medical assessment if your abdomen becomes increasingly swollen or painful, particularly if you are repeatedly vomiting or unable to pass wind or stool.
These symptoms may indicate postoperative ileus, in which your bowel temporarily stops moving normally, or less commonly a mechanical bowel obstruction. You should not simply take increasing amounts of laxative and wait for these symptoms to resolve.
How Can You Prevent Constipation During Your Recovery?
You should take your prescribed laxatives as directed, maintain the fluid intake recommended for you, eat suitable fibre-containing foods and undertake gentle daily activity as your recovery allows.
You should also respond when you feel the natural urge to open your bowels rather than repeatedly delaying it. Your aim is to maintain soft, comfortable bowel movements without straining.
Myth vs Fact
| Myth | What You Should Know |
| Your bowels must open the day after surgery. | Your first bowel movement may take around three to four days after robotic prostatectomy. |
| Your constipation means your operation has gone wrong. | Your anaesthetic, medicines, reduced activity and dietary changes commonly slow your bowels temporarily. |
| You should stop your pain medicines if they cause constipation. | You should discuss your symptoms with your clinical team rather than changing prescribed medicines yourself. |
| You should strain if your bowels have not opened for several days. | Your aim should be soft stools and comfortable bowel movements without excessive straining. |
| Taking more laxative will always solve your constipation faster. | Your laxatives work differently, and increasing them without advice may cause side effects or be inappropriate. |
| You should eat as much fibre as possible immediately after surgery. | Your fibre should be increased gradually, particularly if you are already bloated. |
| You should stay in bed until your bowels start working. | Your gentle walking can support your bowel function and general recovery. |
| Your catheter cannot be affected by constipation. | Your constipation can contribute to pelvic discomfort and may be relevant when your catheter is not draining properly. |
| Your inability to pass wind is always ordinary constipation. | Your inability to pass wind with worsening distension or vomiting may indicate ileus or bowel obstruction. |
| You can automatically use an enema after surgery. | You should check with your surgical team before using rectal treatments during your early recovery. |
Key Takeaways
- Your bowels may take around three to four days to open after robotic prostate surgery.
- Your anaesthetic, surgery, reduced activity and pain medicines can all contribute to constipation.
- Your opioid pain medicines are particularly likely to slow your bowel.
- Your prescribed laxatives should be taken according to your discharge instructions.
- Your stools should remain soft so that you do not need to strain excessively.
- Your gentle walking can support bowel activity and your overall recovery.
- Your fluid intake should follow your postoperative advice and any medical restrictions that apply to you.
- Your fibre intake should be increased gradually rather than suddenly.
- Your constipation may make bladder or catheter symptoms more noticeable.
- Your inability to pass wind with increasing abdominal swelling, pain or vomiting needs prompt medical assessment.
Frequently Asked Questions
1. Is constipation normal after your robotic prostate surgery?
Yes. Your constipation is common because your anaesthetic, operation, pain medicines, reduced activity and changes in your food or fluid intake can temporarily slow your bowel.
2. How long can your bowels take to open after surgery?
Your first bowel movement may take around three to four days after robotic prostatectomy. You should seek advice if your symptoms persist or you develop increasing pain, swelling, vomiting or an inability to pass wind.
3. Can your painkillers cause constipation after prostate surgery?
Yes. Your opioid pain medicines can slow your bowel and make your stools more difficult to pass. You should not stop prescribed pain relief without appropriate medical advice.
4. Should you take laxatives after your robotic prostate surgery?
Yes, if your surgical team prescribed them. You should take your laxatives according to your discharge instructions to help keep your stools soft and reduce your need to strain.
5. What should you eat to help your constipation?
Your fruit, vegetables and wholegrain foods can provide useful fibre. You should increase your fibre gradually, particularly if you are already experiencing bloating.
6. Does drinking fluid help your constipation after surgery?
Yes. Your appropriate fluid intake can support softer stools and normal bowel function. You should follow your individual clinical advice if you have a condition requiring fluid restriction.
7. Can walking help your constipation after robotic prostate surgery?
Yes. Your gentle walking can encourage normal bowel activity and support your general recovery. You should increase your activity gradually and avoid strenuous exercise while your tissues heal.
8. Can your constipation affect your urinary symptoms or catheter?
Yes. Your full bowel can increase pressure in your pelvis and make urinary or catheter discomfort more noticeable. Constipation may also contribute when your catheter is not draining normally.
9. Can you use an enema or suppository after your prostate surgery?
You should ask your surgical team before using a rectal treatment during your early recovery. If your prescribed laxatives are not working, you should seek advice about the safest next step.
10. When should you seek medical help for your constipation?
You should seek prompt medical advice if your constipation occurs with severe or increasing abdominal pain, progressive swelling, repeated vomiting or an inability to pass wind or stool. Your symptoms may indicate postoperative ileus or bowel obstruction rather than straightforward constipation.
Final Thoughts: Constipation After Robotic Prostate Surgery
Constipation is common during your early recovery because surgery, anaesthesia, reduced activity and some pain medicines can temporarily slow your bowel. Your prescribed laxatives, appropriate fluids, suitable fibre and gentle walking can help you return to comfortable bowel movements without excessive straining.
If you are looking for a robotic prostate surgery clinic in London, you can contact us at Prostate Clinic London to arrange a consultation and receive personalised advice about your symptoms, recovery and treatment options.
References
- 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/
- Cambridge University Hospitals NHS Foundation Trust (2023) Robotic radical prostatectomy: frequently-asked questions. Approved 2 May 2023. Available at: https://www.cuh.nhs.uk/patient-information/robotic-radical-prostatectomy-frequently-asked-questions/
- NHS (2023) Constipation. Page last reviewed 26 October 2023. Available at: https://www.nhs.uk/conditions/constipation/
- NHS (2026) Laxatives. Page last reviewed 30 April 2026. Available at: https://www.nhs.uk/medicines/laxatives/
- NHS (2026) Piles (haemorrhoids). Page last reviewed 1 April 2026. Available at: https://www.nhs.uk/conditions/piles-haemorrhoids/
- Özdemir, A.T., Altinova, S., Koyuncu, H., Serefoglu, E.C., Cimen, I.H. and Balbay, D.M. (2014) ‘The incidence of postoperative ileus in patients who underwent robotic assisted radical prostatectomy’, Central European Journal of Urology, 67(1), pp. 19–24. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC4074710/
- Park, J.S., Kim, J., Jang, W.S., Heo, J.E., Elghiaty, A., Rha, K.H., Choi, Y.D. and Ham, W.S. (2018) ‘Management of postoperative ileus after robot-assisted laparoscopic prostatectomy’, Medicine, 97(44), article e13036. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC6221667/
- The Dudley Group NHS Foundation Trust (no date) Bowel obstruction. Available at: https://www.dgft.nhs.uk/pil/bowel-obstruction/
- University College London Hospitals NHS Foundation Trust (2025) Caring for my urinary catheter. Page last updated 16 April 2025. Available at: https://www.uclh.nhs.uk/patients-and-visitors/patient-information-pages/caring-my-urinary-catheter