Annual leakage after each bowel movement, I was diagnosed with diverticulitis

I have been experiencing annual leakage for 17 years. I was diagnosed with diverticulitis and had 13 inches of colon removed. I continue to have annual leakage after each bowel movement. I have had one colonoscopy and nothing was found to be out of the ordinary. I am due for another colonoscopy this coming month. I was wondering if other people have the same problem that I do....I wear a pad daily to insure I don't soil my clothes.