Anal stenosis is very difficult to recover from on its own. Anal stenosis often occurs in the later stages of anal fissure, and symptoms such as anal stenosis can occur with old anal fissures. After surgery for hemorrhoids, because too much skin is removed from the external hemorrhoids, sometimes the scar may grow too much and anal stenosis may form. For anal fissure anal stenosis, surgical treatment is required, usually under anesthesia to do anal sphincter release surgery or artificial anal dilation, in order to restore the anal stenosis to a normal state. If the anal stenosis is formed after hemorrhoid surgery, it is necessary to do the release of perianal scar under anesthesia, radially make several incisions to loosen the tight scar, and then let the anus back to normal, if there is anal stenosis it is recommended to treat it with surgical intervention at the earliest possible time because it is very difficult to recover by oneself.