Fishy odor under the female body may be caused by not paying attention to hygiene, vaginitis, cervicitis and other reasons. 1. Do not pay attention to hygiene: women in daily life, if you do not pay attention to personal hygiene, do not often take a shower to change the underwear, the lower part of the body does not get good ventilation, there will be a fishy odor. 2. Vaginitis, cervicitis: women’s body under the fishy smell may also be vaginitis, cervicitis caused by the vagina affected by pathogens, flora reproduction, vaginal secretions are fishy. Therefore, when there is a fishy odor in the lower body, excluding physiological factors, should promptly consult the doctor, according to the actual situation, to clarify the cause of the disease, symptomatic treatment.