the absence of menstrual bleeding for six months or longer. This is normal before menarche, during pregnancy and for the first year or two of lactation as well as in late perimenopause and after menopause.
The medical term that is used when a woman or a girls' periods stop altogether. Amenorrhea may be caused by a number of things: too much dieting, poor eating habits, illness, being on the birth control pill, pregnancy or menopause.
The Condition" Amenorrhea is a menstrual condition characterized by absent menstrual periods for more than three monthly menstrual cycles, and may be classified as primary or secondary..." Relationship to The Effects Of Overtraining"...Exercising women with amenorrhea lose this normal rhythm, which raises the possibility that this cycle is important for the maintenance of reproductive function..."
Absence or suppression of menses. Primary amenorrhea is the failure to begin menses by age 16, secondary amenorrhea is tardy menses (from pregnancy, stress, dieting, illness or intensive physical training) in the previously menstruating woman.
The absence of menstrual bleeding in a woman who has not gone through menopause; may be due to such things as prolonged stress, thyroid disorders, excessive exercise, eating disorders, premature ovarian failure and others.
The cessation of the menstrual periods for six months or more at a time. Primary Amenorrhea afflicts a woman who has never menstruated. Secondary Amenorrhea afflicts a woman who has menstruated at one time, but who has not had a period for six months or more.
Absence of a menstrual period. Amniocentesis - This procedure entails drawing a small quantity of amniotic fluid from the sac surrounding the fetus. The particles of the baby's sloughed-off skin cells floating in the water are then tested for fetal abnormalities.