Hypermenorrhea, also known as menorrhagia, is a disruption in the normal menstrual flow of girls and women. When a girl or woman experiences hypermenorrhea, she is losing more blood than she normally would during an average menstruation cycle, although the timing of her cycle may remain completely within the time frame of what usually occurs for her.
Menstruation is a woman’s monthly cycle of the rising and falling of hormones and the preparation for pregnancy. When a pregnancy does not occur, the lining of the uterus is shed from the body through the vagina, causing the bleeding to occur.
As mentrual cycles are variable, there is no one set time that a woman will bleed every month. However, regularity usually begins to help with a pattern that a woman can count on, particularly as she grows older and heads out of adolescence.