Clostridioides difficile (C. diff)

Image of a colon with C. diff infection and the microscopic view of C. diff.

Clostridioides difficile, or C. diff, is a bacterium that can cause gastrointestinal symptoms, like nausea, watery diarrhea, stomach pain and stomach cramps that may be severe.

Diverticulitis

Normal colon vs colon with diverticulosis

Diverticulitis is when pockets form in the colon wall and become infected or swollen causing pain, cramping, diarrhea, constipation or fever.