There are many reasons that cause leukorrhea without odor and vulvar itching, which may be caused by vulvar leukoplakia, vulvovaginitis, vulvar dystrophy and so on. 1. Vulvar leukoplakia: mainly itchy vulva with normal secretion, there will be swelling or burning sensation, accompanied by itching, deformation of the fibrous tissue of the skin, which causes a decrease in the elasticity of the skin, leading to localized vesiculation and ulceration, and so on. 2. Vulvovaginitis: manifested as redness, swelling, fever, itching, burning pain and other symptoms, which may cause urinary tract infection, leading to frequent urination, painful urination and other symptoms. 3. Vulvar dystrophy: characterized by vulvar itching, rupture, severe pain, as well as skin changes, due to endocrine disorders, low estrogen leading to infections caused by. Leukorrhea more odorless vulvar itching may also exist other reasons, it is recommended to go to the hospital in a timely manner, improve the relevant examination, under the guidance of a professional doctor to clarify the cause of the disease, targeted treatment.