Vitamin B6 may assist in the treatment of hair loss, but on its own it is usually not significantly effective. 1. Hair loss may be associated with fungal infections, high androgen levels, hyperthyroidism and other factors, manifesting symptoms such as thinning hair and patchy hair loss. It is recommended to go to the hospital to check the thyroid function, hormone six, blood routine and so on to assist in the diagnosis. 2. If hair loss is caused by high androgen, drugs such as finasteride can be taken under the guidance of a doctor. If the hair loss is caused by hyperthyroidism, drugs such as methimazole can be taken under the guidance of a doctor. If it is caused by a fungal infection, it can be treated with drugs such as ketoconazole cream. 3. At the same time of the above treatment, all can take vitamin B6, can promote hair growth, alone generally have no obvious effect. When hair loss occurs, it is recommended to go to the hospital in a timely manner, the drugs need to follow the doctor’s instructions for rational application.