If this condition occurs occasionally, the bleeding is relatively small and the pain is mild, it may be caused by hard stool paper that rubs the skin around the anus. You can take a sitz bath with warm water around the anus after each bowel movement to relieve the symptoms. If this symptom occurs frequently, or if the amount of bleeding is high, or if it is accompanied by more obvious and severe pain, then you need to go to a regular hospital for a specialist examination to clarify the cause. Common causes include hemorrhoids, anal fissures, polyps of the colorectum, ulcerative colorectitis and malignant tumors of the colorectum, and so on, so it depends on the specific case. If you are too worried, you can go to a regular hospital for a detailed examination to clarify the diagnosis.