People with diverticulitis can have signs and symptoms that get better or worse, depending on how badly the diverticula in their colon are inflamed or infected.


The most common signs and symptoms of diverticulitis include:

  • Abdominal pain, epecially in the lower left and sometimes lower right side
  • Pelvic pain during urination (due to inflammation around the bladder, which sits close to the colon)
  • Decreased appetite
  • Nausea and/or vomiting
  • Bloating
  • Constipation
  • Diarrhea
  • Blood or mucous in the stool
  • Bleeding from the rectum
  • Fever and chills

Other conditions, including colon cancer, can present with signs and symptoms that are similar to diverticulitis. That’s why it’s important to consult with a doctor whenever unusual signs or symptoms develop, in order to rule out other health problems and confirm a diagnosis.


What does a diverticulitis attack feel like?

A diverticulitis attack can feel like sudden sharp cramping and pain in the lower left side of the abdomen. This pain can present with additional signs and symptoms, including constipation, diarrhea, bloating, nausea, vomiting, fever, and chills. Some people also notice blood in their stool or bleeding from their rectum during a diverticulitis flare-up.

Disclaimer: this article does not constitute or replace medical advice. If you have an emergency or a serious medical question, please contact a medical professional or call 911 immediately. To see our full medical disclaimer, visit our Terms of Use page.

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