The peeling of the skin at the vulva like dandruff may be due to ringworm, seborrheic dermatitis and other causes. 1. Ringworm: It is mainly a fungal infection that causes superficial inflammation of the inguinal, perineal, perineal, vulvar, anal, and buttock skin, which may result in dandruff-like peeling of the vulva. 2. Seborrheic dermatitis: the cause of the disease is not yet clear, and may be related to the exuberant secretion of sebaceous glands, the overgrowth of Malassezia bacteria, and immune response. It may cause erythema, greasy flaking or chaffy flaking of the skin, and may also lead to dandruff-like peeling of the vulva. There may be other causes of dandruff, so you should go to the hospital for examination and standardized treatment as prescribed by your doctor.