Cognitive psychology is primarily concerned with performing laboratory experiments and conducting scientific research, but this research has led to far-reaching applications within the field of psychology.
Abnormal uterine bleeding is any bleeding from the uterus (through your vagina) other than your normal monthly period. Having extremely heavy bleeding during your period can also be considered abnormal uterine bleeding. Very heavy bleeding during a period and/or bleeding that lasts more than 7 days is called menorrhagia (say: men-oh-raj-ee-ah).
Normal vaginal bleeding is the periodic blood that flows as a discharge from the woman's uterus. Normal vaginal bleeding is also called menorrhea. The process by which menorrhea occurs is called menstruation. Normal vaginal bleeding occurs as a result of cyclic hormonal changes. The ovaries are the main source of female hormones, which control the development of female body characteristics such as the breasts, body shape, and body hair. The hormones also regulate the menstrual cycle.