Yellowish leucorrhea and vulvar itching are overwhelmingly vaginitis. Patients will have such clinical manifestations due to pathogenic vaginal infections, for example, trichomoniasis will manifest as yellowish leucorrhea, some even greenish, and itchy vulva, which is often foamy and smelly. In the case of bacterial vaginitis, the leucorrhea is usually thin and watery, and a series of symptoms such as itching of the vulva will also occur. If the cervicitis is more serious, it will also behave like this. The best thing to do is to go to the hospital for routine laboratory tests to see what pathogens are causing the problem and use medication according to the type of pathogens.