Anal itching, also known as perianal pruritus, is the sensation of itching around the anus. Anal itching is a symptom, not a specific disease, and there are many different causes of anal itching. In most cases, people who suffer from anal itching do not have anal or rectal disease. However, sometimes there are diseases that can cause this symptom. 1. Usual lack of attention to personal hygiene, especially cleanliness around the anus. Not cleaning the area around the anus properly after a bowel movement may leave a small amount of feces on the skin. Feces is rich in various chemicals that can cause itching in the area. In addition, usually do not pay attention to dress, close clothing is too tight, the texture is not easy to absorb sweat, resulting in a long time damp anus, can appear around the anus skin eczema and other problems, causing itching discomfort. 2, some diseases may also cause anal itching. Hemorrhoids, rectal fistula, anal fissure, anorectal cancer, these diseases may be due to increased intestinal or anal secretion, these secretions adhere to the perianal area for a long time, causing skin degeneration around the anus, which can lead to unbearable anal itching. Scabies, lice disease, condyloma acuminata and fungal skin infections caused by Candida or ringworm fungi can cause unbearable anal itching. Once these are cured, the itching will improve or disappear immediately. Anal itching is a condition with complex causes. Once this symptom occurs, it is important not only to look for the cause in your daily life, but also to be alert to some of the more serious diseases.