If the vulva and vagina are itchy, the following causes are common in clinical practice: 1. Candida infection, which causes inflammatory and allergic reactions in the vaginal mucosa, resulting in tofu-like vaginal discharge with vulvar itching and vulvar redness. 2. Trichomonas vaginitis, which also causes allergic reactions in the vaginal mucosa. 3. 3. Mycoplasma and Chlamydia infections, which clinically cause not only increased vaginal discharge, frequent and urgent urination, but also vulvar itching. It is recommended that no matter which pathogen causes itching, timely treatment should be given and no spicy or acidic food or alcohol should be consumed during the treatment period.