Psoriasis may be caused by psoriasis, chronic eczema, or neurodermatitis.
1. Psoriasis: the disease is caused by the common action of heredity and environment, it can be distributed all over the body, and symmetrically distributed to the extensor side of the limbs, such as the elbow, the lesions are red papules and macules at the beginning, and then gradually expanded to plaques, which can be covered with silver-white scales, and become layer-like.
2. Chronic eczema: inflammation of the superficial dermis and epidermis, with pimples and scales on the affected area, roughness and thickening of the skin surface, mossy changes and itching.
3. Neurodermatitis: is the skin nerve dysfunction skin disease, there can be itching and pimples all over the body, often scratching can be formed hypertrophy, mossy lesions, skin color becomes dark, dry and flaky.
The elbow long hard dermatophytosis is recommended to consult a doctor in a timely manner, after the cause is clear, follow the doctor’s instructions to standardize the treatment.