The water that comes out after intercourse mainly has the following components: 1. semen, because semen is ejaculated into the vagina, the amount of semen is about 2-6ml, so part of it will be discharged outside the vagina, and it will feel like a watery discharge. 2. during intercourse due to changes in hormone levels in the body caused by sexual excitement, resulting in increased vaginal secretions and increased cervical secretions, which will flow out during intercourse The vaginal and cervical secretions are mixed with the vaginal secretions. 3, the vestibular gland secretions, due to sexual excitement caused by the contraction of the vestibular gland, so that the vestibular fluid will be discharged, the water flowing out during intercourse also has the composition of the vestibular gland fluid. In the clinic is mainly composed of these components.