If there is no itching but odor below, the initial consideration may be caused by the patient’s daily inattention to the cleanliness of the intimate area, which can be cleansed by warm water first, and the odor can mostly dissipate. In case of disease, women may have certain gynecological diseases, such as bacterial vaginitis, cervicitis, cervical cancer. In the case of male patients, it may be caused by glansitis. A. Women 1. Bacterial vaginitis: the main clinical manifestation is increased and thinner vaginal discharge with fishy odor. The treatment often uses anti-anaerobic drugs such as metronidazole, tinidazole, clindamycin, etc. It can usually be cured with timely treatment. 2. Cervicitis: Cervicitis is a common gynecological condition, mainly caused by vaginal inflammation. Most patients are asymptomatic, and those who have symptoms mainly show increased vaginal discharge, which is mucopurulent and can be accompanied by odor; 3, cervical cancer: it is a malignant lesion of the cervix, and most patients show white or bloody leucorrhea with fishy odor, which may be accompanied by general symptoms such as mental decompensation, fatigue and fever. Second, male males do not itch but have odor underneath, if poor hygiene is ruled out as a result of the situation, it may be glansitis caused by overcircumcision and dirt residue, and a few patients may not have itching symptoms. It is recommended that patients be treated with sensitive antibiotics and that patients with circumcision be circumcised after the inflammation has been controlled.