Scalp has been itching may be physiological causes, such as scalp cleaning is not in place, etc.; may also be caused by pathological causes, such as ringworm, seborrheic dermatitis and other diseases.
1. Physiological reasons: if the patient usually do not pay attention to the scalp area clean, in the case of a long time without washing hair, may cause scalp and hair dirt, scalp itching symptoms.
2. Pathologic causes:
(1) ringworm of the head: this is mainly due to dermatophyte infection of the skin, hair and other parts of the common skin diseases, especially in children, often due to contact with patients or pollutants and thus the emergence of fungal infections, resulting in patients with symptoms of scalp itching.
(2) seborrheic dermatitis: the cause of the disease is not yet clear, may be related to genetics, Malassezia infection, diet and other factors, is a local chronic inflammatory skin disease, the typical symptoms of greasy erythema, pimples, accompanied by itching and other symptoms.
Scalp has been itchy may also be caused by other diseases, it is recommended that patients go to the regular hospital in a timely manner, with the doctor to clarify the cause of targeted treatment, not blindly use drugs.