If bleeding occurs during non-menstrual periods, it is important to consider the possibility that it is caused by some pathological factors, mostly seen in the following cases. The first condition is caused by endocrine disorders. Abnormalities in the secretory function of the ovaries can cause bleeding in the uterine area, or during ovulation due to a transient drop in estrogen, which can also result in some bleeding. The second condition is contact bleeding, which is usually caused by excessive force during sexual intercourse, or bleeding after sexual intercourse due to some underlying disease. The third condition is due to inflammatory or neoplastic diseases of the genitals, such as cervical erosion, fibroids, cervical cancer or endometrial cancer, which can cause vaginal bleeding. The fourth condition can be seen in women who bleed after pregnancy. This condition is usually seen in cases of pre-eclampsia, ectopic pregnancy or miscarriage. The fifth condition is caused by systemic diseases such as thrombocytopenia or coagulation dysfunction caused by a decrease in coagulation factors. In short, if you find vaginal bleeding outside of your period, you should go to the hospital in time to have a checkup to clarify the cause and then take targeted treatment.