The feeling of falling in the vagina after intercourse may be a normal physiological phenomenon, or it may be a manifestation of certain diseases, such as local inflammation of the vulva and vagina, vulvar malnutrition, etc., and the cause should be identified in a timely manner by consulting a doctor. 1. Normal physiological phenomenon: after sex, women’s pelvis and vagina will be mildly congested, resulting in a slight sensation of falling in the body, which is a very normal phenomenon. 2. Local inflammation of the vulva and vagina: due to local inflammation of the vulvar skin and vaginal mucosa, resulting in congestion and edema, and after sexual intercourse, there is a sensation of pain in the lower part of the body. 3. Vulvar dystrophy: vulvar dystrophy occurs atrophy, the local mucous membrane elasticity decreases, during sexual intercourse occurs damage, causing the following localized drop feeling. There are other possibilities for the feeling of falling in the vagina after intercourse, you should go to the obstetrics and gynecology clinic of the hospital in a timely manner to clarify the cause of the disease, and under the guidance of a professional physician, follow the doctor’s instructions for treatment, and do not use your own medication, so as to avoid delaying the condition.