Thinning hair in the middle of the head is usually caused by seborrheic alopecia, which can be treated with medication, microneedling, and hair transplantation. Seborrheic alopecia can be treated with topical minoxidil solution to promote hair growth. If the scalp is accompanied by excessive oil secretion can use selenium disulfide lotion to relieve. In addition, female patients can take oral spironolactone, and male patients can take oral finasteride tablets and other drugs combined treatment. In addition to medication, microneedling can also be performed to promote hair regrowth. If none of the above treatments are effective, hair transplantation can also be performed to transplant hair follicles from the non-alopecia area to the alopecia area. If the hair on the top of the head is too thin, you should go to the hospital in time for examination, and the use of medication should be in accordance with the doctor’s instructions.