What are the symptoms of perianal eczema?

The symptoms of perianal eczema mainly include itching, moisture with exudation, pain, and changes in skin pigmentation. Specific manifestations are as follows: 1. **Itching:** Perianal eczema is often accompanied by paroxysmal severe itching, which can disturb sleep in severe cases. 2. **Moisture and exudation:** Due to the rupture of blisters and pustules, serous or purulent fluid may exude, causing moisture and discomfort around the anus, and possibly leading to skin abrasion or erosion. 3. **Pain:** When secondary infection and inflammation occur in the perianal skin, pain in the anal area and during defecation may develop. 4. **Changes in skin pigmentation:** Long-term recurrent perianal eczema can cause localized skin thickening, rough skin surface, deepened and widened skin texture, and may be accompanied by hyperpigmentation or hypopigmentation.