Total anal itching may be related to perianal eczema, hemorrhoids, anal fistula or pinworms and many other reasons.
1. Perianal eczema: can appear perianal denser pimples or mounds of herpes, often with intense itching, perianal skin moisture, redness, impregnation, scratching can have oozing and vesicles formation.
2. Hemorrhoids: squatting for a long time, constipation can form hemorrhoids, such as internal hemorrhoids, there is blood in the stool and hemorrhoidal prolapse, part of the population due to intestinal secretion outflow to stimulate the anal skin, causing itching.
3. Anal fistula: mostly caused by perianal abscess incision and drainage after a long time or self-rupture, intermittent or continuous anal discharge, causing local itching.
4. Pinworms: mainly perineum and perianal itching, children patients may have night terrors, sleep disturbance appears.
The anus is always itchy, it is recommended that the patient timely to the hospital specialist clinic, after a detailed examination, give targeted treatment.