Menstruation, also called a period, is the monthly discharge of the uterine lining as blood and mucous when the egg fails to fertilize with a sperm. Amenorrhea is the absence of bleeding. It occurs as a natural process during pregnancy, breast feeding and menopause. In other cases, it is considered a medical condition. Amenorrhea is defined as no menstrual cycle by the age of 15 years or has missed 3 consecutive periods.

Amenorrhea can occur due to stress, contraceptive use or while taking other medications. Hormonal imbalances due to conditions such as polycystic ovary syndrome, pituitary abnormalities and thyroid malfunction, and structural deformities such as uterine (womb) scarring or lack of reproductive organs, may also lead to amenorrhea.

Apart from the absence of bleeding, amenorrhea may also be associated with milky nipple discharge, headache, changes in vision, hair loss, excess facial hair, acne or pelvic pain. Unchecked amenorrhea can lead to infertility and osteoporosis. When you present with these symptoms, your provider will examine you and potentially order blood and/or imaging tests to determine the underlying cause. Based on the results, appropriate treatment options can be discussed.

  • ACOG
  • AIUM
  • American Association of Gynecologic Laparoscopists
  • NYU langone Medical center
  • American Association for Accreditation of Ambulatory Surgery Facilities
  • UpToDate