What is diarrhea with blood?

Diarrhea with blood refers to the symptoms of diarrhea and hematochezia at the same time. The possible reasons include: 1. Ulcerative colitis can cause this symptom, which is generally seen in young adults. Symptoms will be relieved after a period of time, and will be shown after a period of time, often accompanied by different degrees of fever, anemia, physical deterioration, weight loss, etc. 2. Crohn's disease can also cause this performance, mainly manifested as mucus and blood in feces.