Ovulatory bleeding is abnormal vaginal bleeding that occurs periodically in the middle of a woman’s two menstrual periods with a small amount of uterine bleeding, i.e., usually on days 14-16 of a 28-day menstrual cycle, for example. It usually lasts for several hours or days and may be accompanied by slight abdominal pain, which indicates the arrival of ovulation. If it occurs occasionally, it usually does not indicate the occurrence of disease.1. Physiological ovulatory bleeding: The endometrium starts from the 5th day of menstruation and will gradually thicken under the action of estrogen. After ovulation, with the ovaries discharging eggs, the level of estrogen gradually decreases and is not enough to maintain the endometrium to continue to proliferate, at which time the endometrium The endometrial lining will shed and vaginal bleeding will occur, which is usually less than the amount of menstruation and may appear as brown discharge or blood in the white belt with mild abdominal pain. In case of physiological ovulatory bleeding, women can alleviate the discomfort caused by ovulatory bleeding by clarifying their menstrual cycle, maintaining a good state of mind and avoiding excessive stress or mental stimulation; paying attention to keeping warm, eating less cold food and reducing external stimulation; ensuring good rest and avoiding fatigue; and developing good hygiene habits; 2. If a woman has persistent ovulatory bleeding and the amount is large, she should consider whether the abnormal vaginal bleeding is caused by pathological factors, such as cervical polyps, endometrial polyps, uterine fibroids, etc., which may affect pregnancy and lead to infertility in serious cases. It can be adjusted by taking estrogen and progestin under the guidance of a doctor. In case of pathological ovulatory bleeding, clinicians usually need to judge by the patient’s typical symptoms, combined with the patient’s basal body temperature biphasic measurement, that is, by measuring the body temperature every morning to clarify the temperature changes of the menstrual cycle, usually the initial body temperature during menstruation is low, and after ovulation the body temperature will gradually rise by 0.5℃ until the onset of menstruation, which is considered as ovulatory bleeding. In addition, ultrasound and hysteroscopy can also be used to help diagnose, and if necessary, endometrial biopsy can be performed to clarify the diagnosis.