Boys with low hair volume need to clarify the cause, if caused by genetic factors generally difficult to change, if caused by disease factors such as seborrheic alopecia, baldness need to be treated with medication. 1. Genetic factors: low hair volume can be caused by genetic factors, the phenomenon of family members with less hair can occur, and it is generally difficult to change. 2. Seborrheic alopecia: If there is seborrheic alopecia, it will make the hair become less, especially the hair on the top of the head. It can be treated with topical ketoconazole lotion and other medications. 3. Patchy baldness: Patchy baldness is characterized by limited hair loss, which can be treated with glucocorticosteroids such as Denuded ointment. Minoxidil can also be used. You should pay attention to maintaining emotional stability. If the phenomenon of low hair, go to the hospital in time for examination, the use of the above drugs should follow the doctor’s instructions.