Caffeine linked to leaky bladder in men. The amount of caffeine that's typically found in two cups of coffee may contribute to a man's incontinence, according to a new study.
Heavy menstruation, also known as menorrhagia, is usually the result of a hormonal imbalance. Another common cause of abnormal uterine bleeding is fibroid tumors. Other causes of excessive bleeding that your healthcare provider should consider include: cervical or endometrial polyps.
1 An intrauterine device (IUD) also may increase your chances of spotting or heavy periods. For more information on the IUD, see the topic Birth Control.  Infection of the pelvic organs (vagina, cervix, uterus, fallopian tubes, or ovaries) may cause vaginal bleeding, especially after intercourse or douching. Sexually transmitted infections (STIs) are often the cause of infections. For more information, see the topic Sexually Transmitted Infections.