Symptoms of seborrheic alopecia areata include thinning of hair on the top of the head and on both sides of the forehead, receding of the hairline, and loss of hair on the top of the head. Early manifestations of seborrheic alopecia are thinning hair on both sides of the forehead, which slowly extends to the top of the head, and the forehead hairline recedes backward, gradually forming the phenomenon of “high forehead”, with hair in the shape of an “M”. The hair on the top of the head also gradually falls out, and then merges with the frontal hair loss to form a patch. As the disease progresses, the symptoms of seborrheic alopecia will become more serious, the scope of hair loss will spread to the surrounding area, due to the gradual degeneration and atrophy of hair follicles, so the local scalp will become smoother. When the above symptoms occur, it is important to follow the doctor’s instructions to give the appropriate medication in a timely manner.