Itchy buttocks, may be suffering from hemorrhoids, perianal eczema, local fungal infections and other causes. 1. Hemorrhoids: after suffering from hemorrhoids, local hemorrhoidal secretions will stimulate the surrounding skin, the mole protrudes and rubs the surrounding skin, resulting in an itchy feeling. 2. Perianal eczema: summer weather is hot or after exercise produces a lot of sweat, or urine and so on so that the perianal skin is in a humid environment, resulting in perianal inflammation, local redness, swelling, itching. 3. Localized fungal infection: the skin around the anus is infected by fungus, which is mostly manifested as reddening of the skin, there will be flaky protrusions, and itching symptoms will appear. If the buttocks itching, it is recommended to eat a light diet, dress loose, and go to the dermatology department in time, after the cause of the disease is clear in the doctor’s advice on the symptoms of the treatment.