a food product that consists of whole or ground grains of various crops. Most groats are made from grains of rice, millet, and buckwheat; some are made from oats, corn, wheat, and peas.
Abnormal uterine bleeding has many causes. It is sometimes caused by changes in hormone levels. It can also be caused by problems such as growths in the uterus or clotting problems. In some cases the cause of the bleeding isn't known. You may have abnormal uterine bleeding if you have one or more of the following symptoms: 1  You get your period more often than every 21 days or farther apart than 35 days. 2  Your period lasts longer than 7 days (normally 4 to 6 days). 3  Your bleeding is heavier than normal.
Other Causes of Abnormal Vaginal Bleeding. Certain drugs may cause bleeding, especially if a woman takes anticoagulant drugs (drugs that prevent the blood from clotting). Inherited bleeding disorders (such as von Willebrand disease and hemophilia) may cause excessive or prolonged vaginal bleeding. Trauma is also a cause of bleeding. Some types of IUDs may cause heavier periods (slight bleeding is usually normal; pay attention to heavier bleeding).