Thinning hair may be caused by natural hair follicle thinning, or it may be caused by malnutrition, or it may be caused by seborrheic alopecia, which has different causes and different treatments. The treatment usually includes general treatment and medication. 1. Physiological factors: natural hair follicle thinning can lead to hair thinning, this situation is difficult to grow hair by any means to achieve the effect of thick hair, you can consider hair transplantation or the use of wigs and other ways to improve. 2. Malnutrition: Malnutrition can lead to hair thinning. Malnutrition patients due to protein, trace elements, vitamins and other intake is insufficient, so there can be hair growth stagnation, or even hair loss phenomenon, this situation only need to strengthen the nutrition can be. 3. Seborrheic alopecia: patients with this disease can also appear hair thinning symptoms, in this case, men can take oral finasteride, women can take oral spironolactone, cyclopropylprogesterone, at the same time can be combined with the external use of minoxidil and other drugs for treatment. If the symptoms of thinning hair occur, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it. Medications should be used as prescribed by the doctor.