Constipation after hip surgery is extremely common, and getting your bowels moving again requires a combination of the right medications, enough fluids and fiber, safe positioning on the toilet, and gentle physical strategies. Most people should expect a bowel movement within the first two days after surgery. If you haven’t gone by day two, it’s time to act, because waiting three or four days while feeling bloated and uncomfortable makes the problem significantly harder to resolve.
Why Hip Surgery Causes Constipation
Several factors gang up on your digestive system at once. Opioid pain medications slow the nerve signals that keep your intestines contracting and pushing stool forward. Lying in bed for extended periods reduces the natural muscle contractions in your colon, and the longer stool sits in the large intestine, the more water gets absorbed from it, leaving it hard and difficult to pass. Anesthesia itself temporarily puts your gut to sleep. On top of all that, many people eat less, drink less, and feel anxious after major surgery, and anxiety activates your body’s stress response, which further slows intestinal movement.
Research on hip replacement patients specifically has identified the strongest risk factors. Being bedridden for more than 48 hours after surgery increases constipation risk more than fivefold. A prior history of constipation raises risk about sixfold. Age over 70, irregular eating patterns, and anxiety are all independent contributors. These factors work together, which is why constipation rates are so high in this patient population.
Start Stool Softeners Early
Don’t wait until you’re already backed up. The most effective approach is to begin a stool softener the same day as surgery or the day after. A stool softener like docusate keeps water in the stool so it stays soft and easier to pass. Many surgeons also recommend pairing it with a mild stimulant laxative like senna, which gently nudges the intestinal muscles to contract. An osmotic laxative such as polyethylene glycol (sold as MiraLAX) draws water into the bowel and can be added from day one as well.
If you haven’t had a bowel movement by day two, you can add a stronger stimulant laxative like bisacodyl (Dulcolax), available over the counter. This is a reasonable step to take on your own, but let your surgical team know. If nothing has happened by day three or four, your care team will likely escalate to stronger options or investigate further. The goal is to stay ahead of the problem rather than chase it.
Fiber and Fluid Targets
Getting enough fiber and water is essential, but increase your fiber gradually. Aim for 25 to 40 grams of fiber per day, building up over about ten days rather than jumping straight to the high end. Good sources include prunes, pears, oatmeal, beans, and whole grain bread. Prune juice is a classic for a reason: it contains both fiber and a natural sugar alcohol that draws water into the intestine.
Here’s the critical piece most people miss: fiber without enough fluid can actually make constipation worse. Fiber absorbs water from the intestine, so if you’re not drinking enough, it can lead to bloating or even a blockage. There’s no single magic number for water intake after surgery, but a reasonable starting point is eight or more cups per day. If your urine is pale yellow, you’re likely drinking enough. If it’s dark, increase your intake.
Safe Toilet Positioning After Hip Replacement
Getting on and off the toilet safely is just as important as getting your bowels to cooperate. The main rule after hip replacement is to avoid bending your hip past 90 degrees, which means your knee should never come higher than your hip while you’re sitting. A standard toilet is often too low, which forces your hip into that risky range.
A raised toilet seat solves this problem. You can buy one at any medical supply store, and your surgical team may recommend a specific height. Some models come with armrests, which give you something stable to push off of when standing. When sitting down, back up to the toilet until you feel it against the backs of your legs, reach back for the armrests or seat edges, and lower yourself slowly while keeping your operated leg slightly forward.
A few other positioning rules to follow every time you use the bathroom:
- Keep your feet about 6 inches apart. Don’t bring your knees or ankles together.
- Don’t cross your legs while sitting, standing, or lying down.
- Don’t lean far forward to strain or reach for toilet paper. Use a long-handled reacher or wiping aid if needed.
- Your hips should always be higher than your knees when seated.
Gentle Techniques That Help Without Straining
Straining hard on the toilet is both uncomfortable and counterproductive after hip surgery. It raises pressure in ways that can cause pain at your surgical site. Instead, try these approaches:
Abdominal massage can genuinely help. Using moderate pressure with your fingertips, trace a path along your colon: start at the lower right side of your abdomen, move up toward your ribs, across to the left, and then down the left side toward your pelvis. This follows the natural direction of your large intestine. Spending 10 to 15 minutes on this, twice a day, has been shown in studies of immobilized patients to increase the frequency of bowel movements and reduce abdominal bloating.
Deep breathing also plays a role. When you inhale deeply into your belly (rather than shallow chest breathing), your diaphragm presses down on your abdominal organs, creating a gentle internal massage. On the toilet, try taking slow, deep breaths and gently bearing down on the exhale, using your abdominal muscles rather than holding your breath and pushing.
Movement is one of the most powerful tools you have. Even short walks with a walker in your hallway make a real difference. Physical activity stimulates the muscular contractions that push stool through the colon. Being bedridden for more than 48 hours is one of the biggest constipation risk factors after hip surgery, so getting up and moving as soon as your surgical team clears you is one of the best things you can do for your gut.
What to Watch For
Most post-surgical constipation resolves within a few days with the strategies above. But certain symptoms suggest something more serious, like an intestinal blockage, which requires prompt medical attention. Contact your surgical team or go to the emergency room if you cannot pass gas at all, if your abdomen becomes visibly swollen and stays that way, if you develop persistent vomiting alongside constipation, or if you have worsening abdominal pain that doesn’t let up. The inability to pass gas is a particularly important warning sign, because it suggests a complete obstruction rather than simple constipation.
A Practical Day-by-Day Plan
Putting it all together, here’s what a reasonable approach looks like:
- Surgery day: Start a stool softener and osmotic laxative if your surgeon agrees. Sip water and clear fluids regularly. Begin gentle abdominal massage.
- Day 1: Continue medications. Eat fiber-rich foods as your appetite allows. Begin walking with assistance if cleared by your care team.
- Day 2: If no bowel movement yet, add a stimulant laxative like bisacodyl. Increase walking distance. Try warm prune juice.
- Day 3 and beyond: If still no movement, contact your surgeon. They may recommend a stronger laxative, a suppository, or further evaluation.
The single most important takeaway is to start prevention on day one rather than waiting for constipation to set in. Once stool has been sitting in the colon for days, hardening and drying out, it becomes a much more uncomfortable problem to solve. A proactive approach with softeners, fluids, fiber, and movement gives most people their first post-surgical bowel movement within 48 hours.