Finasteride tablets are effective in treating hair loss. Part of the reason why people lose hair is due to excessive androgens that cause hair loss. Finasteride can lower the human body’s dihydrotestosterone, which is the human body’s androgen. By lowering the human body’s androgen, hair loss can be gradually relieved, but finasteride tablets, while lowering dihydrotestosterone, may also cause other side effects due to the lowering of androgen, such as reduced sexual function, or menopausal symptoms such as gynecomastia or weakness due to the decline of androgen. Symptoms. In addition, finasteride tablets for hair loss must be applied in small doses in order to treat hair loss, and there are many causes of hair loss, not necessarily caused by high androgens, but also other causes, such as seborrheic alopecia, etc. Therefore, it is necessary to go to the hospital for the appropriate examination and blood test, and then carry out the corresponding treatment.