The causes of anal itching and skin bursting include bad habits, infection, psychogenic factors, local irritation, and certain diseases. 1. Bad habits: such as poor diet (such as excessive intake of coffee, etc.), poor hygiene habits and excessive cleaning. 2. Psychogenic factors: such as anxiety and depression. 3. Infections: such as genital warts, fungi, parasites (such as worms, scabies) and bacterial infections can appear anal itching and skin bursting. 4. Local stimulation: anal itching skin mainly associated with contact with a sensitizer or irritant to the perianal skin contact stimulation. 5. Some diseases: some diseases can cause anal itching, such as chronic diarrhea, fecal incontinence, hemorrhoids, anal fissure or anal fistula, rectal prolapse, rectal cancer. The cause of anal itching skin complex, it is recommended that patients should go to the hospital in a timely manner, a clear diagnosis, standardized treatment under the guidance of a professional doctor, so as not to cause delays in the condition.