Ovulation bleeding may be caused by physiological factors or by reproductive system diseases, and the severity should be analyzed according to the specific causes. 1. Physiological factors: such as abnormal hormone levels, mostly due to luteal insufficiency during ovulation, resulting in a transient decrease in progesterone levels, causing the endometrium to lose support from estrogen, and the endometrium partially falls off, which may cause symptoms of ovulation bleeding. 2. Reproductive system diseases: endometrial polyps may cause irregular vaginal bleeding, as well as endometritis, long-term inflammation infiltration leads to local endometrial adhesions, combined with fluctuations in hormone levels during the ovulation period, resulting in endometrial detachment, symptoms of bleeding during ovulation can occur. If the symptoms of ovulation bleeding persist or bleeding persists after ovulation, you should be vigilant and seek timely medical attention to identify the cause of the disease and then treat the symptoms.