What kind of abnormal cells in the uterus can cause bleeding?

Vaginal bleeding: This can be the result of conditions anywhere in the female genital tract, most commonly in the uterus, and the part of the uterus extending into the vagina (cervix). This can be due to infection, tumor, or other inflammatory conditions. You need to see a gynecologist and have this evaluated and treated aggressively soon. Best wishes for a speedy recovery.