It is normal to have more leucorrhea after intercourse, but there should not be watery leucorrhea, which is considered to be related to pathogenic infections, especially bacterial infections. During intercourse, sexual excitement increases the secretions from the vestibular gland and vagina, leading to an increase in the amount of leucorrhea, which becomes thinner in nature and does not have an odor. If the leukorrhea becomes watery after intercourse and has an odor, accompanied by vulvar and vaginal itching, it is advisable to go to the hospital in time to check the vaginal discharge routine to determine whether there is pathogenic infection. It is recommended to pay attention to the hygiene of the perineum, take a shower or use warm water to clean the perineum every day, do not take a tub bath, so that the sewage will not enter the uterine cavity through the vagina and cause inflammation.