The fishy smell below is likely to be caused by gynecological inflammation or unhygienic. Under normal circumstances, female genital organs and their secretions will have a faint fishy smell, but if the smell is very big you should be alert and also observe whether there is vulvar itching, abnormal vaginal fluid flow and other manifestations. If these symptoms occur at the same time, it is recommended to go to the hospital for a detailed examination to clarify the type of vaginitis or other gynecological inflammation and use medication under the guidance of the doctor. Also, pay attention to ask your doctor if you need to treat both men and women, or prohibit sexual intercourse during the treatment period. Wash your vulva every day, keep it clean and dry, use cotton underwear, pay attention to the frequency of changing underwear, and develop good hygiene habits. Drink more water every day to promote the excretion of toxic substances in the body. When having sex, pay attention to maintaining hygiene and clean up in time.