What are the causes of rectal bleeding?

Hematochezia, the phenomenon of blood accompanying bowel movements, can be caused by various factors. The main reasons include digestive tract inflammation, hemorrhoids, peptic ulcer, and other intestinal diseases.

1. Digestive Tract Inflammation: Due to improper diet or bacterial infection, inflammation may occur in the digestive tract, leading to mucosal congestion, edema, and even ulcers, which can cause bleeding. Chronic inflammations such as chronic gastritis and enteritis may cause hematochezia and need to be improved through dietary adjustments and drug therapy.

2. Hemorrhoids: Prolonged sitting, squatting, genetics, and long-term constipation can all induce hemorrhoids. When hemorrhoid patients have bowel movements, the dilated veins may rupture and bleed, manifesting as bright red blood. The treatment of hemorrhoids includes drug therapy and surgical treatment.

3. Peptic Ulcer: Alcohol stimulation, bacterial or viral infections can all lead to ulcers in the digestive tract mucosa, resulting in bleeding. Patients with peptic ulcers need to follow the doctor's advice and use drugs to inhibit gastric acid and protect the gastric mucosa for treatment.

4. Other Intestinal Diseases: Hematochezia may also be related to more complex intestinal diseases, such as intestinal tumors and colonic polyps. These diseases require professional medical examinations for diagnosis and corresponding treatment measures. Hematochezia is not a specific symptom of a single disease but a manifestation that can occur in multiple diseases. Once hematochezia occurs, one should seek medical attention promptly for diagnosis and treatment by a professional doctor. At the same time, maintaining good lifestyle habits, such as quitting smoking and alcohol, balanced diet, and moderate exercise, also helps prevent the occurrence of hematochezia.