Causes of diarrhea and bleeding include hemorrhoids, ulcerative colitis, and rectal tumors.
1. Hemorrhoids: It refers to the varicose vein plexus at the end of the rectum, thus forming a vascular mass. When diarrhea because the rectal sphincter has been contracted, the varicose blood vessels are friction by feces, resulting in bleeding symptoms.
2. Ulcerative colitis: when ulceration occurs in colitis, the lesion will invade the intestinal mucosal tissues and cause blood vessel rupture, which will lead to diarrhea, blood in stool and other symptoms.
3. Colorectal tumor: usually malignant colorectal cancer, due to the invasion of cancerous tissues, causing bleeding of intestinal blood vessels, which in turn leads to blood in stools, and may be accompanied by symptoms such as emaciation, anemia, and unshaped stools, etc. If the patient has diarrhea with blood in stools, he/she may suffer from diarrhea and blood in stools.
If the patient has the symptom of diarrhea with blood in stool, he should go to the regular hospital in time for consultation and colonoscopy if necessary, and after clarifying the cause of the disease, targeted treatment should be carried out under the guidance of the doctor.