Vulvar itching in adolescent girls only makes a symptom of many diseases, and the etiology may be diverse. (1) Vulvovaginitis or vestibulitis, such as trichomonas vaginalis, mycotic vaginitis, nonspecific vaginitis, etc. (2) Irritation by menstrual blood and vaginal secretions. If you do not pay attention to the pubic hygiene during menstruation after menarche, menstrual blood and vaginal secretions can pollute and stimulate the vulva and cause itching. (3) pinworms, pubic lice, scabies of the pubic area and some venereal diseases can also occur vulvar itching. Pinworm disease occurs mostly in young girls and mainly causes itching around the anus, which can spread to the vulva, with episodes at night. The incidence is lower in young girls. (4) Sexually transmitted diseases, such as gonococcal and chlamydial infections, can also cause vulvar itching and other symptoms. (5) Systemic disorders. Vulvar itching may also be a symptom of systemic disorders such as diabetes, jaundice, leukemia, anemia, etc. (6) Clothing discomfort: Preferring to wear chemical fiber underwear can cause itching due to poor ventilation of vulvar skin and soaking of sweat stains. (7) Local lesions of vulva. Vulvar skin diseases such as vulvar eczema, neurodermatitis, chronic vulvar dystrophy, vulvar tumors, etc. can be the cause of vulvar itching. (8) Allergy. Systemic or vulvar local drug allergy, chemical allergy such as soap, cosmetics can cause vulvar itching. (9) Mental factors. There are also some patients who are unable to find out the cause of vulvar itching, which may be due to excessive mental tension. To sum up, remind young girls if vulvar itching symptoms occur to timely diagnosis and treatment, do not use their own drugs to delay the disease. Instead, they should be treated symptomatically under the guidance of a doctor.