Vulvar itching is a common gynecological disease, usually occurring in the vulva and vagina, and the common causes are as follows: 1. Some women wear chemical fiber underwear, wear too tight, poorly ventilated sanitary napkins or use poor quality sanitary napkins, or are allergic to condoms, which can cause increased secretions, and the stimulation of secretions and sweat glands can lead to vulvar itching; 2. If you suffer from vaginitis, such as mycotic vaginitis, trichomonas vaginitis or bacterial vaginitis, there is an increase in leucorrhea, which can stimulate the vulva and cause itching. In addition, herpes, eczema and condyloma acuminata can also cause vulvar itching; 3. Diabetic patients can also cause vulvar itching due to poor blood sugar control; 4. Vulvar dermatitis and vulvar leukoplakia can also cause vulvar itching.