There are more reasons for the odor in the lower body, which may be cervicitis, vaginitis, not paying attention to personal hygiene and so on. 1. Cervicitis: Inflammation of the cervix can lead to an abnormal increase in cervical secretions, which can cause increased vaginal discharge, vaginal odor and other symptoms. 2.Vaginitis: (1) Vulvovaginal pseudofilamentous yeast disease: there will be increased leukorrhea, curd-like or tofu dregs, accompanied by vulvovaginal itching, odor and other symptoms. (2) Trichomonas vaginitis: it will lead to an increase in thin purulent and frothy vaginal discharge with foul odor, vulvar itching, or burning, pain, and painful intercourse. (3) Bacterial vaginosis: it will also lead to increased vaginal discharge with fishy odor, which may be accompanied by mild vulvar itching and burning sensation. 3. Not paying attention to personal physical hygiene: women usually do not change and wash underwear diligently, do not pay attention to safe sex, may lead to vaginal odor. There may also be other reasons for the odor, it is recommended to consult a doctor in a timely manner, improve the routine leukorrhea, vaginal secretions and other related examinations, and actively deal with under the guidance of a specialist.