Stripes growing at the anal opening may be associated with diseases such as anal fistula, external hemorrhoids, and acromegaly. 1. Anal fistula: it is an abnormal tube that connects the rectum to the skin around the anal canal. The disease is prevalent in people with a previous history of perianal abscesses, with localized pain and recurrent pus flow as the main features, and can be palpable in the subcutaneous extension of the stripes towards the anus, one or more. Surgical excision is usually the main treatment. 2. External hemorrhoids: when external hemorrhoids occur, resulting in the appearance of strips of redundant skin growths outside the anus, which can be manifested as soft strips of flesh. At this time, there may not be any symptoms, but when it is damaged, local pain, swelling and inflammation will occur. 3. warts: anus long meat strip may be caused by warts. When suffering from warts, the long stripes appearing in the anus can be daisy-like, and can also be accompanied by itching symptoms. When you have a long strip in the anus, it is recommended that you go to the anorectal department of the hospital as soon as possible, through anal fingerprinting, anoscopy and other related examinations, to clarify the cause of the disease, and to carry out timely treatment, to avoid delays in aggravation of the condition.