In a case of ulcerative colitis, what type of diarrhea is typically expected?

In ulcerative colitis, the expected type of diarrhea is characterized by the presence of blood and mucus. This inflammatory bowel disease primarily affects the colonic mucosa and results in ulceration, which leads to the secretion of blood into the intestines. As a consequence, individuals with ulcerative colitis often experience bloody diarrhea, which is a significant indicator of the condition. The inflammation and ulceration disrupt the normal absorption processes in the colon, causing inflammation and bleeding, which manifest as diarrhea mixed with blood.

The other options do not correctly represent the type of diarrhea typically associated with ulcerative colitis. Watery diarrhea is more characteristic of conditions such as infections or irritable bowel syndrome. Soft stool is a general description that does not convey the severity and specificity of ulcerative colitis, and constipation is often not associated with this condition, as individuals typically experience increased bowel movements rather than a reduction. Thus, the presence of bloody diarrhea is a hallmark symptom of ulcerative colitis, reflecting the underlying pathology of this disease.