The nucleus of hemorrhoids is the internal hemorrhoid, which usually grows above the anal tooth line and on the rectal mucosa, where the blood supply is generally rich, so the main symptom of internal hemorrhoids is bleeding. As the internal hemorrhoid gradually increases, the nucleus gradually increases and it will continuously prolapse to the outside of the anus. As the hemorrhoid continues to grow, it may become embedded in the anal opening and form a mixed hemorrhoid, resulting in edema of the skin around the anus and ischemic necrosis of the hemorrhoid nucleus after it is embedded, which can be painful for the patient. If hemorrhoids are present, it is best to intervene with medication as soon as possible. If the hemorrhoid is frequently prolapsing, it is best to have surgery, as hemorrhoids can develop in a serious direction if left untreated.