There are many causes of anal itching: 1, skin lesions, perianal skin diseases such as perianal eczema, neurodermatitis, ringworm, various warts, etc. Itching is caused by feces adhering to the perianal folds and irritating the skin. 2. allergic reactions, if irritating foods are used, such as chili, mustard, spices, wine or atopic protein foods, or if certain drugs are taken, perianal itching can be caused by allergies. 3. endocrine and metabolic diseases, such as increased sugar content in the skin of diabetic patients, which stimulates the nerve endings and causes itching, hyperthyroidism can occur Itchy skin, which may be related to excessive sweating, increased basal metabolic rate, tension, etc. 4, certain diseases, such as anal fistula, hemorrhoids, acute and chronic diarrhea, iron deficiency anemia, etc. The symptoms of perianal itching must go to a regular hospital for a detailed examination, after confirming exactly what causes the perianal itching, and then develop a detailed treatment plan. In daily life, pay attention to the combination of work and rest, to avoid overexertion resulting in a decrease in body resistance. You should try to keep your mood relaxed and happy to avoid excessive tension and anxiety, which can lead to increased itching.