Women always feel that there is something under the body to flow out may be ovulation or menstruation and other physiological factors, may also be cystitis, trichomoniasis vaginitis and cervicitis and other diseases. 1. Physiological factors: estrogen levels will increase during ovulation, and women will experience increased vaginal discharge. In addition, women’s hormonal changes in the body before or at the onset of menstruation, when the leukorrhea will also increase, so women in the ovulation or menstruation always feel that there is something under the body to flow out. 2. Cystitis: Cystitis is mostly considered to be caused by bacterial infection. Patients will have frequent urination, urinary urgency, urinary pain and other manifestations, so patients will always feel that there is something under the body to flow out. 3. Trichomonas vaginitis: Trichomonas vaginitis is mainly caused by Trichomonas vaginalis infection, patients will have increased vaginal discharge, itching of the vaginal opening, scanty or purulent discharge and other manifestations, so that the patient will always feel that there is something under the body to flow out. 4. Other: patients with cervicitis, bacterial vaginitis and other diseases will also have the feeling that there is something under the body to flow out. If you exclude physiological factors caused by the feeling of something coming out from under the body, the patient needs to consult a doctor in a timely manner, you can choose targeted measures for treatment under the guidance of the doctor.