Testosterone is an androgen, too much of which may lead to hair loss. Too much testosterone, i.e. too much androgen, can cause excessive growth of sebaceous glands at the scalp, and excessive oil production causes restricted growth and development of hair follicles, ultimately causing hair loss. Patients may experience thinning and thinning hair and increased dandruff. In addition to hair loss, female patients may also have symptoms such as irregular menstruation. In addition to high testosterone causing hair loss, there are also factors such as stress, baldness, physical stimulation, and heredity that can cause hair loss. Patients with severe hair loss need to go to the hospital in time to find out the cause of the disease, and after clarifying the cause of the disease, timely treatment can be carried out to correct the hair loss.