The first thing is that after suffering from hemorrhoids, the hemorrhoids will prolapse, thus allowing a large amount of mucus to flow out of the anus, and over time, the irritation of the skin can lead to itching of the skin and the formation of eczema in the anus. The main symptom of anal fissure is that it causes pain at the anal opening when you have a bowel movement, which is the formation of an ulcerated surface, and the contraction of the anal levator muscle during bowel movement causes the ulcerated surface to tear, thus causing pain. The fistula is caused by an internal and external fistula, and also by a perianal abscess that causes the formation of an external fistula around the anus, which penetrates the internal fistula and forms an anal fistula. The actual fact is that the nucleus of the hemorrhoid is protruding from the anus and cannot be returned, and over time it is prone to necrosis, and the embedded hemorrhoid is more painful and is also recommended for emergency surgery.