Anal stenosis is usually checked about one month after hemorrhoid surgery. Anal stenosis belongs to the sequelae of hemorrhoid surgery, and is related to excessive anal canal skin damage during surgery or insufficient skin bridges left between hemorrhoids, etc. It is more common in clinical practice. Generally about a month after the hemorrhoid surgery, the wound healing well, you can go to the regular hospital anorectal department, by professional doctors to do anoscopy or anal fingerprinting, to determine whether there is anal stenosis. If anal stenosis occurs after hemorrhoid surgery, one is that it is difficult to enter the anus with an anoscopy, and the other is that it is difficult to enter the anus with a finger during anal finger diagnosis. Once found that there is anal stenosis, it is recommended to cooperate with a professional anorectal surgeon as soon as possible to take the procedure of loosening the anus. After hemorrhoid surgery should be good care, keep local clean, timely disinfection, dressing change, etc., so as to avoid wound infection, not conducive to recovery.