Vaginal bleeding during ovulation is mostly associated with a drop in estrogen levels, but gynecological diseases such as cervicitis, endometrial polyps, and cervical cancer can also be associated with intermenstrual vaginal bleeding. Ovulatory vaginal bleeding refers to a small amount of vaginal bleeding that occurs between menstrual periods. During ovulation, estrogen levels in the body drop, resulting in the shedding of the uterine lining and the appearance of a small amount of vaginal bleeding, which usually lasts for a short period of time. Ovulatory vaginal bleeding should also be considered gynecological diseases, such as pathogenic infections and other causes of cervicitis, the patient may have bleeding between periods or bleeding after intercourse and other symptoms. Endometrial polyps are associated with high estrogen levels, and patients have symptoms such as bleeding between periods, irregular bleeding or prolonged periods; patients with cervical cancer may have symptoms such as irregular vaginal bleeding or vaginal discharge. When patients have symptoms such as large amount of vaginal bleeding or irregular vaginal bleeding, it is recommended that they should consult a doctor in time to get a clear diagnosis and then treat the cause and symptoms.