Vulvovaginal itching is usually a manifestation of vaginitis. If it lasts for more than half a year, it can seriously affect the quality of life and health, and in pregnancy, it can cause preterm labor or pelvic inflammatory disease and other serious consequences. Vulvovaginal itching for six months is generally a manifestation of vaginitis, such as trichomoniasis, vulvovaginal pseudomycosis or bacterial vaginosis and other vaginal inflammation. In the occurrence of trichomonas vaginitis, if left untreated for a long time, trichomonas can invade many parts of the urethra, bladder, renal pelvis and so on, causing a variety of inflammatory manifestations. Trichomonas vaginitis that occurs during pregnancy can also lead to adverse pregnancy outcomes such as premature rupture of membranes or preterm labor. When bacterial vaginosis occurs, it can lead to pelvic inflammatory diseases, causing lower abdominal pain and even systemic symptoms such as high fever and chills. To sum up, when you find vulvar itching, go to the hospital specialist in time, clarify the cause of the disease and follow the doctor’s instructions, avoid delay, in order to prevent serious consequences.