Symptoms of itchy scalp and hair loss are commonly associated with seborrheic alopecia, or androgenetic alopecia, which is generally treatable. Seborrheic alopecia, is a progressive hair loss disorder that occurs during and after puberty. In men, it mainly manifests as a progressive reduction and thinning of hair at the frontal hairline and/or the top of the head, and in women, it mainly manifests as a progressive reduction and thinning of hair in the middle of the scalp, and is usually accompanied by symptoms such as increased oil secretion from the scalp, greasy hair, dandruff, and itching. Seborrheic alopecia treatment mainly includes internal drugs (such as finasteride, spironolactone, etc.), external drugs (such as minoxidil, etc.) and hair transplantation, etc. If early diagnosis and timely and correct treatment can be carried out, most of the patients’ symptoms can be combated to continue to develop, but at present, it can not be cured. However, itchy scalp, hair loss may also be other reasons, such as scalp folliculitis, lichen planus, scleroderma, lupus erythematosus, etc. can be seen in the skin rash, itching, and hair loss. Therefore, it is recommended that patients consult a doctor for examination, the doctor to clarify the cause, give targeted treatment, do not blindly self-medication.