Medically Reviewed By: Dr. Neeraj Goel, MCh (GI Surgery)
Designation: Director – GI Oncology, GI & HPB Surgery
Review Date: August 28, 2026
Diverticulitis happens when tiny pockets in your colon wall get swollen or infected. Doctors call these small outpouchings diverticula. Having them is very common as people get older—a state known as diverticulosis. When bacteria get trapped or irritation flares up, it turns into diverticulitis.
Most attacks hit the sigmoid colon, which is the lower bend of your large intestine. Plenty of mild bouts settle down with simple rest and medicine. But when severe complications arise or attacks keep coming back, surgery is often the safest path.
An episode starts when one of these pockets gets inflamed, often along with an infection.
Common risk factors:
Even though diverticulosis is common, only a small fraction of people ever end up dealing with active diverticulitis.
Belly pain is the main warning sign. It can feel like a dull ache or hit as a sharp, intense cramp.
If you develop sharp, sudden stomach pain with a fever, get checked by a doctor right away.
Most cases stay mild and clear up with basic care. Severe attacks, however, can cause serious damage:
Your care depends on how bad the attack is, whether complications have formed, how many bouts you have had, and your overall health.
Most people recover without surgery. Care involves simple diet adjustments, drinking lots of fluids, pain relief, and antibiotics in select situations.
When symptoms get worse, you might need a hospital stay for IV fluids, intravenous antibiotics, and close monitoring while the bowel rests.
If an abscess forms, a radiologist can drain it using a thin catheter guided by CT or ultrasound. Antibiotics are given alongside the drainage to clear the infection before any future surgery.
Surgery is usually recommended if:
Current medical guidelines favor personalized decisions for every patient.
If you need an operation, robotic colorectal surgery offers a minimally invasive option. The robotic system gives the surgeon high-definition 3D views and steady control in tight pelvic spaces.
Key benefits:
The standard operation for diverticulitis is a sigmoid colectomy. The surgeon removes the diseased lower colon segment and reconnects the healthy ends to keep attacks from returning.
Most planned surgeries do not require a permanent bag. A temporary stoma is only used during emergencies, severe bowel tears, or heavy infection so the bowel has time to heal, and it is usually reversed later.
A bowel tear, peritonitis, severe blood infection (sepsis), or a complete intestinal blockage require immediate emergency surgery. Acting fast can save your life.
Yes. Treating an attack with medicine alone leaves a chance of future flare-ups. For people with repeat attacks or complications, surgery cuts down that risk significantly.
Dr. Neeraj Goel provides specialized surgical care for diverticular disease, strictures, fistulas, and complex colorectal conditions. His work centers on robotic and minimally invasive bowel surgery, including robotic sigmoid colectomies. Working alongside gastroenterologists, radiologists, and infectious disease doctors, he creates practical treatment plans built around your recovery.
It is an inflammation or infection in small pouches (diverticula) that bulge out from your colon wall.
It happens when these pouches get inflamed. Age, low fiber intake, obesity, and smoking all raise your risk.
You will usually feel pain in your lower left stomach, along with fever, nausea, bloating, and changes in your bowel habits.
An abdominal CT scan is the main test doctors use to confirm the condition and check for complications.
Yes. Most mild cases clear up with medicine, plenty of fluids, and rest.
It means the attack led to an abscess, a tear, an abnormal tunnel (fistula), a blockage, or peritonitis.
A pocket of pus near the colon that often needs to be drained with a small tube.
An operation is advised if you have repeated flare-ups, blockages, fistulas, tears, or pain that will not go away with medicine.
The surgeon takes out the diseased sigmoid colon and rejoins the healthy bowel ends.
Yes. It is a minimally invasive procedure done through tiny cuts.
Most planned operations avoid a permanent bag. Temporary stomas are only placed during high-risk or emergency cases.
Yes, especially if treated with medicine alone. Surgery lowers the chance of future attacks.
No. However, a follow-up colonoscopy after you recover is standard to ensure nothing else was missed.
What you should eat depends on your recovery stage. Your doctor will give you a clear diet plan as your bowel heals.
Book an appointment if you deal with repeat attacks, ongoing pain, an abscess, a fistula, or multiple trips to the hospital.
