If the leucorrhea increases during intercourse, it is normal to have an increase in leucorrhea without abnormal color, such as yellow or brown leucorrhea, or itching or redness of the vulva, etc. The sexual stimulation during intercourse will cause an increase in vaginal discharge, and the prostatic fluid or semen of men will also enter the vagina and cause an increase in discharge. This is caused by hormonal changes in the body that lead to vaginal and cervical congestion and edema, resulting in increased permeability. If the increase in leukorrhea is accompanied by vulvar itching or yellow or brown leukorrhea, consider the inflammatory stimulation caused by vaginitis, cervicitis, and possibly cervical erosion, you can do routine leukorrhea examination and colposcopy to identify the cause and then reasonably treat with metronidazole suppositories, you can also wash your vulva with cleansing.