What to Expect After an Ileostomy Reversal

Recovery after ileostomy reversal is a process that unfolds over weeks to months, not days. Most people leave the hospital within a few days of surgery, but the real adjustment begins at home, as the bowel slowly relearns how to function through its full length. Frequent, loose stools are the norm early on, and the stoma-site wound needs careful attention. The trajectory varies quite a bit depending on the reason for the original surgery and the individual, so knowing the general timeline and what falls within the range of normal can make the experience far less alarming.

The First Few Days in the Hospital

Ileostomy reversal is typically performed as a planned procedure once the downstream bowel has healed sufficiently. In the immediate aftermath, your surgical team will be watching for signs that the reconnected intestine is waking up. Passing gas is the first milestone, and it usually happens within a day or so. One randomized trial found that gum chewing shortened the average time to first gas from about 33 hours to about 21 hours, a modest trick that some surgical teams now recommend as a way to nudge the gut along.¹ You will be started on clear liquids and gradually advanced to solid foods as tolerated.

Postoperative ileus, a temporary slowdown of bowel activity, is one of the most common early hiccups. The bowel simply does not start contracting normally right away. Symptoms include bloating, nausea, and an inability to pass gas or have a bowel movement. It usually resolves on its own within a few days, but if it lingers, it can delay your discharge. Bowel obstruction, surgical site infection, and, less commonly, anastomotic leak are the other complications surgeons monitor for during this window.²

What Happens to Your Bowel Habits

This is the part that catches many people off guard. For the first few weeks, expect frequent and loose bowel movements, sometimes ten or more per day. The portion of bowel that was bypassed while you had the ileostomy has essentially been resting, and it takes time for it to regain its ability to absorb water, form stool, and coordinate normal contractions. Interviews with patients just four to six weeks after reversal consistently describe a profound disruption in daily routine, with bowel function essentially dictating when and where they can go.³

Stool frequency and consistency usually improve over the first three to six months. But “improve” does not always mean “return to what it was before surgery.” A prospective study found that while diarrhea and frequency got better over six months post-reversal, roughly a third of patients still had some degree of mild fecal incontinence that did not resolve with time.⁴ This is not universal, but it is common enough that you should not feel alarmed if bowel control is still imperfect months later.

Certain dietary adjustments help during this transition. Eating smaller, more frequent meals, avoiding high-fiber and gas-producing foods initially, and staying well-hydrated are standard recommendations. Your surgical team or a dietitian can guide you on when to start reintroducing foods that you were avoiding.

Low Anterior Resection Syndrome

If your ileostomy was placed after rectal cancer surgery, you may experience a cluster of symptoms collectively called low anterior resection syndrome, or LARS. This includes urgency, frequent bowel movements, difficulty distinguishing gas from stool, clustering of bowel movements in short bursts, and episodes of incontinence. LARS is extremely common after low rectal surgery, and the reversal of the ileostomy is often when it first becomes apparent, since the stool is now flowing through the reconstructed area.

Research into the risk factors for LARS has identified a few consistent predictors. A lower anastomosis (the surgical connection closer to the anus), radiation therapy, and more advanced cancer staging all increase the likelihood and severity of LARS.⁵ Patients describe the unpredictability as the single most burdensome aspect of living with LARS. Knowing in advance that these problems are likely, having access to structured follow-up care, and connecting with other people who have been through it were all identified as things that made the experience more manageable.⁶

The underlying cause of LARS is not just about sphincter weakness. Recent reviews point to a broader disruption involving the gut microbiome, immune signaling, and metabolite balance, all of which are thrown off by both the cancer surgery and the period of fecal diversion.⁷ That helps explain why recovery is slow and multifactorial, and why there is no single fix.

Healing at the Stoma Site

The former stoma site is an open wound and one of the most common locations for infection after the procedure. Surgical site infection is the single most frequent complication of ileostomy reversal.² How the wound is closed makes a difference.

Surgeons have two main approaches: closing the skin in a straight line (linear closure) or using a drawstring-style technique (purse-string or circular closure) that leaves a small opening in the center to drain. Meta-analyses consistently show that the purse-string method leads to fewer wound infections. One pooled analysis of high-quality studies found the purse-string group had a significantly lower infection risk compared to linear closure.⁸ Another meta-analysis reported that only about 4% of patients with circular closure developed infection, compared to 27% with primary linear closure.⁹ The trade-off is that purse-string closure takes longer to fully close, sometimes several weeks, and requires regular dressing changes at home. If you notice redness, warmth, increasing pain, or drainage with an unpleasant smell from the wound, contact your surgical team promptly.

Serious Complications to Watch For

Most ileostomy reversals go smoothly, but the procedure is not without risk. The complications that matter most are anastomotic leak, bowel obstruction, and wound infection. Leak at the reconnection site is the most feared because it can lead to abscess, sepsis, and potentially another operation. One study of over 360 patients found that about 14% experienced a leak after reversal, with the risk being higher when the original connection was low in the pelvis or when the patient had received radiation therapy.¹⁰

Small bowel obstruction is the other complication that brings people back to the hospital. It occurs when adhesions (scar tissue from the surgeries) kink or block a loop of intestine. Symptoms include crampy abdominal pain, vomiting, bloating, and a complete stop in gas and stool output. Most episodes resolve without another surgery, but some require reoperation. The overall readmission rate within 30 days of reversal sits around 12%, and small bowel obstruction is the most common reason for returning to the hospital.¹¹ Independent predictors of readmission include a longer operation, intraoperative complications, any ICU stay, and being discharged to a skilled nursing facility rather than home.¹²

An important reassurance: studies looking at whether delaying the reversal beyond twelve months worsens outcomes have not found a significant increase in postoperative complications from the delay itself.¹³ So if your reversal keeps getting pushed back for medical reasons, the surgery itself does not appear to become riskier with time.

What Pelvic Floor Exercises Can Do

Pelvic floor muscle exercises, sometimes called Kegel exercises, have real evidence behind them for reducing bowel dysfunction after reversal. A randomized controlled trial found that patients who did pelvic floor exercises had significantly fewer daily bowel movements and less nighttime defecation at two, three, and six months compared to those who did not, along with better quality-of-life scores.¹⁴ Another trial specifically looking at fecal incontinence in rectal cancer patients found that exercises reduced incontinence scores substantially in the first six months, though the benefit faded by nine months as the non-exercise group also improved.¹⁵

A systematic review and meta-analysis of randomized trials confirmed that pelvic floor rehabilitation reduces incontinence scores at one and six months after surgery, and also improves LARS scores when used as a treatment in people already symptomatic.¹⁶ The evidence quality is still rated as low to very low, which means the effect sizes could shift as more trials are done, but the direction of benefit is consistent. In practical terms, starting these exercises early after reversal is low-risk and worth doing. A pelvic floor physiotherapist can ensure you are performing them correctly, which matters more than most people realize.

Quality of Life and the Emotional Side

People tend to assume that getting the stoma reversed will restore life to normal. Some aspects do improve right away. Body image and the ability to participate in leisure activities generally get better after reversal.¹⁷ Social function and physical function also improve in the months that follow.⁴ The relief of no longer managing a stoma bag is genuine and meaningful for most people.

But other dimensions of quality of life do not change as much as expected. General health perception, emotional function, and mental health scores often stay flat after reversal.⁴ Meanwhile, gastrointestinal symptoms often increase after reversal and can persist for up to a year.¹⁷ The result is a gap between expectations and reality. An increasing proportion of patients in one study said they felt worse than they had anticipated after stoma closure.¹⁷ This is not to say the surgery was wrong or unhelpful, but it underscores that managing expectations before the reversal can make the psychological adjustment smoother. If your surgical team does not bring up this topic, it is worth asking about.

Studies looking at general health and social function scales after reversal do find improvements in some domains, but not across the board.¹⁸ The picture is not bleak, but it is more nuanced than the simple “you’ll get your life back” framing that patients sometimes hear.

What Happens to Your Gut Microbiome

While you have an ileostomy, the section of bowel downstream of the stoma is essentially dormant. No food or stool passes through it, and the microbial ecosystem in the colon changes dramatically. Species diversity drops, potentially harmful bacteria increase, and the beneficial short-chain fatty acid producers decline.¹⁹ These shifts help explain some of the diarrhea and gut irritability that follows reversal. The colon has to rebuild its microbial workforce.

The good news is that some of this recovery happens relatively quickly. One study found that gut microbes recovered to a standard composition within about a month after intestinal continuity was restored and regular eating resumed.²⁰ Other research, however, has found that some of the changes in microbial diversity persist for at least six months after stoma closure.¹⁹ It is likely that the colon’s basic functions recover within weeks, but fine-tuning the microbial balance takes considerably longer. Whether probiotics meaningfully speed this process is still an open question with limited high-quality trial data.

Hernia Risk at the Old Stoma Site

An under-discussed long-term concern is the development of an incisional hernia where the stoma used to be. The abdominal wall was intentionally opened for the stoma, and even after surgical closure, that spot remains a weak point. In a study that followed patients for a median of two years, roughly a third developed an incisional hernia at the previous stoma site. The majority of those hernias were symptomatic, and about two-thirds required surgical repair.²¹

Higher body mass index, a history of stoma prolapse or parastomal hernia before the reversal, and high blood pressure were all independent risk factors. Patients who originally had a colostomy had a higher hernia rate at the old site than those who had an ileostomy.²¹ There is no perfect way to prevent this, but maintaining a healthy weight and avoiding heavy lifting during the healing period (your surgeon will typically advise at least six to eight weeks of lifting restrictions) can reduce the risk. If you notice a bulge at the old stoma site, especially one that grows when you cough or strain, let your surgeon know.

Timing the Reversal Around Chemotherapy

For patients undergoing adjuvant chemotherapy after rectal cancer surgery, the question of when to reverse the ileostomy is a practical one. Completing chemotherapy before reversal has been identified as an independent risk factor for stoma-related complications, likely because the cumulative effects of treatment leave the body less able to heal.²² On the other hand, research has found that patients on standard oral or intravenous chemotherapy can safely undergo ileostomy closure with an appropriate delay from their last cycle. The exception is bevacizumab, which impairs wound healing through its effects on blood vessel formation. Patients who received bevacizumab should be counseled about higher complication risk.²³

Before the reversal itself, surgeons need to confirm that the downstream anastomosis has healed properly. There is no single agreed-upon test for this, but emerging evidence suggests that an endoscopic examination and a digital rectal exam are at least as reliable as the traditional contrast enema for detecting problems, and carry less discomfort.²⁴ If your surgeon recommends a particular workup, it is worth asking what they are looking for and what happens if they find something concerning.

When to Seek Help Versus When to Wait It Out

The line between normal recovery symptoms and signs of a complication can feel blurry. As a general guide, frequent loose stools and some urgency in the first several weeks are expected. Mild soreness around the stoma site is normal. Fatigue is normal, especially if you are also recovering from cancer treatment.

Symptoms that should prompt a call to your surgical team include:

• Fever: a temperature above 38°C (100.4°F) could indicate infection or leak.
• Severe abdominal pain: especially if accompanied by vomiting and inability to pass gas, which may signal obstruction.
• Wound changes: increasing redness, warmth, swelling, or foul-smelling drainage from the old stoma site.
• Dehydration signs: dizziness, dark urine, dry mouth, and very high stool output in the early days can lead to dehydration quickly, particularly before the colon is fully absorbing water again.
• Rectal bleeding: small amounts of blood are sometimes normal early on, but persistent or heavy bleeding needs evaluation.

The first two weeks after discharge carry the highest readmission risk. If something feels wrong during that window, err on the side of calling. After the acute period, the focus shifts to the longer game of bowel retraining, dietary adjustment, pelvic floor work, and monitoring the stoma site for hernia. Most people find that six months out, life looks meaningfully different from the first few rough weeks, even if it has not returned entirely to the pre-surgery baseline.