There are several reasons for anal itching after normal delivery: 1. If there are hemorrhoids after normal delivery, it will aggravate the increase of hemorrhoids, and with constipation or increased abdominal pressure, the prolapsed hemorrhoid nucleus will easily produce mucus, which will lead to perianal itching. 2. If there is difficulty in defecation and dry stool after normal delivery, it will easily lead to skin cracks around the anus, which will secrete mucus, and this will also lead to anal itching. 3. If there is fungus around the anus This will form radiating chaps, and the perianal skin chaps can secrete mucus, which will also lead to itching around the anus. So after the normal birth with the increase in abdominal pressure, the original hemorrhoids tend to aggravate, easy to prolapse outside the anus or around the skin has cracks, can lead to anal itching. The cause should be analyzed and anal visualization or anal finger diagnosis should be done, and if necessary, anoscopy should be performed to clarify the cause and then treat it symptomatically.