Diverticulitis is inflammation (swelling) and infection in one or more diverticula. You may feel pain, nausea, fever and have other symptoms.

Are diverticula painful?

Diverticulosis. You can have diverticulosis and not have any pain or symptoms. But symptoms may include mild cramps, swelling or bloating, and constipation. These symptoms can also be caused by irritable bowel syndrome, stomach ulcers, or other health problems.

What is diverticulitis pain like?

The most common symptom of diverticulitis is a sharp cramp-like pain, usually on the left side of your lower abdomen. Other symptoms can include fever and chills, nausea, vomiting, and constipation or diarrhea.