Most people return to light activity about 2 to 6 weeks after diverticulitis surgery and feel fully recovered in about 6 to 12 weeks. Recovery is often quicker after a planned, minimally invasive operation and longer after emergency surgery or if a colostomy is needed.

Here is what the recovery timeline usually looks like for patients in Houston, and what you can do to heal well.

What happens during diverticulitis surgery?

The surgeon removes the part of the colon affected by diverticulitis, usually the sigmoid colon on the lower left side, and reconnects the healthy ends.

This operation is called a colectomy or colon resection. Many planned operations are done with minimally invasive methods, such as robotic surgery. Robotic surgery uses smaller incisions and often means less pain and a shorter hospital stay, with similar complication rates to other approaches. Learn more on our robotic colon surgery page.

Whether and when to have surgery is an individual decision. Current national guidelines from the American Society of Colon and Rectal Surgeons recommend weighing your symptoms, the type of attacks you have had, your overall health, and how diverticulitis affects your life, rather than counting episodes. Surgery is generally advised for complications such as a fistula, a narrowed colon, or a blockage. Read more on our diverticulitis surgery page.

How long will I be in the hospital?

After a planned minimally invasive operation, many people go home in about 1 to 3 days. Emergency surgery often means a longer stay.

Most hospitals use an "enhanced recovery" plan. That usually means:

• Getting out of bed and walking the day of or the day after surgery
• Starting to drink and eat soon after surgery
• Using several kinds of pain control to limit opioid medicine

You will usually go home once you are eating, walking, and your pain is controlled with pills.

What does the week-by-week recovery look like?

Most people improve steadily, with the biggest gains in the first month. Everyone heals at their own pace.

• Week 1 to 2: You will feel tired and sore. Short, frequent walks help. Bowel movements may be irregular, loose, or less frequent at first.
• Week 2 to 6: Energy returns. Many people go back to light activity and desk work in this window.
• Week 6 to 12: Most people return to full activity, including exercise and more physical jobs, once their surgeon clears them.

It is common to feel tired for several weeks. That is part of normal healing, not a sign that something is wrong.

When can I go back to work and drive?

Many people with desk jobs return in about 2 to 4 weeks. Jobs that involve heavy lifting or physical labor usually need more time.

You can usually drive once you are off opioid pain medicine and can move quickly and brake without pain, often around 1 to 2 weeks. Most surgeons advise avoiding heavy lifting (more than about 20 pounds) for around 4 to 6 weeks to protect the incisions and lower the chance of a hernia.

Walking is encouraged from day one. It helps prevent blood clots and pneumonia and helps your bowels wake up.

What should I eat after diverticulitis surgery?

Most people can eat soon after surgery. Your team may suggest starting with softer, lower-fiber foods and adding fiber back over a few weeks.

• Eat small, frequent meals.
• Include protein to help healing, such as eggs, fish, chicken, beans, or yogurt.
• Drink plenty of water, especially in the Houston heat.
• Add fiber slowly to keep stools soft and regular.

Over the long term, a diet rich in fiber, regular exercise, and not smoking may help lower the risk of diverticulitis coming back.

What if I need a colostomy?

Sometimes the colon cannot be safely reconnected at the first operation, most often during emergency surgery for a severe infection or a hole in the colon. In that case, a colostomy is created.

This is often called a Hartmann procedure. Stool passes into a pouch on the belly while the body heals and the infection clears. For many people, the colostomy is temporary. Reversal is often considered around 3 to 6 months later, once you have fully recovered.

Reversal is a second operation with its own recovery. Learn more on our ostomy surgery and reversal page.

What can slow down recovery?

Recovery may take longer if:

• Surgery was done as an emergency
• An open (larger) incision was needed
• You have other health conditions, such as diabetes, heart or lung disease
• Cigarette smoking
• There was a complication, such as an infection or leak at the connection

Planning ahead helps. Our guide on how to prepare for colorectal surgery covers simple steps you can take before your operation.

Frequently Asked Questions

Is diverticulitis surgery a major surgery?

Yes. Removing part of the colon is a major abdominal operation. Minimally invasive methods can make recovery easier for many people.

Will my bowel habits change after surgery?

Bowel movements are often irregular for a few weeks. Most people settle into a normal pattern over time.

Can diverticulitis come back after surgery?

It can, but it is uncommon. Removing the affected section lowers the chance of future attacks.

Do I need a colonoscopy after a diverticulitis attack?

Often, yes. Guidelines advise checking the colon after a complicated attack if you have not had a recent colonoscopy, to confirm the diagnosis and rule out other problems.

When should I call my surgeon after going home?

Call for fever, worsening belly pain, vomiting, redness or drainage from an incision, or if you cannot pass gas or keep fluids down.

Talk With a Houston Colorectal Surgeon

If diverticulitis keeps disrupting your life, or you are trying to decide whether surgery makes sense, a conversation with a specialist can help you plan. You can request a consultation with Dr. Belizaire at houstoncommunitysurgical.com.

Sources

• Hall J, et al. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Treatment of Left-Sided Colonic Diverticulitis. Dis Colon Rectum. 2020. PubMed
• Irani JL, et al. Clinical Practice Guidelines for Enhanced Recovery After Colon and Rectal Surgery From the American Society of Colon and Rectal Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons. Dis Colon Rectum. 2023. DOI
• Peery AF, et al. AGA Clinical Practice Update on Medical Management of Colonic Diverticulitis: Expert Review. Gastroenterology. 2021. PubMed
• National Institute of Diabetes and Digestive and Kidney Diseases (NIH). Treatment for Diverticular Disease. NIDDK