13-year-old teenagers gray hair may be congenital hereditary or acquired causes, congenital gray hair such as albinism, more symptomatic treatment; acquired gray hair may be related to endocrine factors such as hypothyroidism and other diseases, more drug treatment. 1. Albinism: it is an autosomal recessive hereditary disease, it can appear the whole body hair whitening performance, lack of specific treatment, mostly take symptomatic treatment, daily life to avoid prolonged exposure to sunlight, reduce unnecessary outings, wear long sleeves, wear a hat when you go out; acute stage can be transfusion treatment, serious pulmonary fibrosis needs to be treated with lung transplantation, inflammatory bowel disease can be used hormone or antibiotic drugs. 2. Hypothyroidism: the phenomenon of gray hair can also occur. Once the diagnosis of this disease is established, thyroid preparations, such as L-thyroxine sodium or thyroid tablets, should be taken for life. The diet should be rich in protein, vitamins and minerals. All of the above medications should be used under a doctor’s supervision, and self-medication should be avoided. If a 13-year-old teenager develops gray hair, he or she needs to go to the hospital in time to find out the specific cause of the disease and treat the cause.