One year after hysteroscopy, the leukorrhea is tasteless and the vulva is itchy, which is generally considered to be caused by vulvar dystrophy and vulvovaginitis. 1. vulvar dystrophy: this is a relatively common gynecological disease, common clinical symptoms is vulvar itching, but the secretion is generally normal, usually the patient’s vulvar mucosal tissue is relatively fragile, and the skin will appear white symptoms, elasticity is weakened, and may cause eczema symptoms. 2. Vulvovaginitis: the emergence of this disease may also cause vulvar skin itching, but usually does not involve the vagina and cervix, so it will not cause abnormal secretions. In addition, odorless leukorrhea is vulvar itching can also be seen in other causes, such as vulvar eczema, folliculitis and so on. It is recommended that patients need to go to the regular hospital to receive further examination, according to the relevant results of the examination for treatment.