Amenorrhea is the absence of periods (menstrual bleeding) for more than 6 months. Absence of periods during 2-6 months called oligomenorrhea. Amenorrhea could be primary or secondary.
Primary amenorrhea is the absence of menstrual bleeding and secondary sexual characteristics (for example, breast development and pubic hair) in a girl by age 14 years or the absence of menstrual bleeding with normal development of secondary sexual characteristics in a girl by age 16-17 years.
Secondary amenorrhea is the absence of periods in girls and women who had been menstruating but later stop menstruating for 6 or more months in the absence of pregnancy, menopause, hormonal treatment and/or hormonal contraception.
For a woman to have regular menstrual cycles, her hypothalamus, pituitary gland, ovaries, and uterus should all be functioning normally. The hypothalamus stimulates the pituitary gland to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH and LH cause the ovaries to produce the hormones estrogen and progesterone. Estrogen and progesterone are responsible for the cyclical changes in the endometrium (uterine lining), including menstruation (period). In addition, a woman’s genital tract should be free of any abnormalities to allow the passage of menstrual blood.
Amenorrhea can result because of an abnormality in the hypothalamic-pituitary-ovarian axis which could be functional or anatomical.
Amenorrhea is the absence of periods (menstrual bleeding) for more than 6 months. Absence of periods during 2-6 months called oligomenorrhea. Amenorrhea could be primary or secondary. Primary amenorrhea is…
In XX century scientists observed very specific phenomenon wherein the menstrual cycles of females (girls and/or women) living together or living in close quarters were synchronized – actually women will…
Disclaimer: It is strongly recommended to consult your doctor for professional advice. Above mentioned information and recommendations are just general and should be adapted to each person according to personal health indicators and status.