Many different things can cause abnormal uterine bleeding. Pregnancy is a common cause. Polyps or fibroids (small and large growths) in the uterus can also cause bleeding. Rarely, a thyroid problem, infection of the cervix or cancer of the uterus can cause abnormal uterine bleeding. In most women, abnormal uterine bleeding is caused by a hormone imbalance. When hormones are the problem, doctors call the problem dysfunctional uterine bleeding, or DUB. Abnormal bleeding caused by hormone imbalance is more common in teenagers or in women who are approaching menopause.If you have the Symptoms of Irregular Menstruation (Period)--Uterine bleeding, we would say herbal medicine is a safe and effective form of treatment. At TCM Window, we offer relaxing treatments and expert guidance through the whole process. We specialize in different kinds of chronic and difficult miscellaneous diseases, we offer the best possible care in a peaceful and welcoming environment. If you would want our expert to create a TCM diagnosis, please fill out the health form as requested.