Definition
Amenorrhea refers to the absence of a menstrual cycle. Primary amenorrhea occurs if an adolescent female has not yet begun menstruation by around age 16 or so. Secondary amenorrhea describes a condition in which a woman who has previously menstruated on a regular basis misses three or more periods in a row. In the United States, amenorrhea affects between 2-5% of women.
Most females begin menstruating between the ages of 9-18, but age 12 is the average. Menstruation, or a menstrual period, refers to the monthly process in which the uterus sheds blood and tissue in preparation for pregnancy.
If a female has not started her menstrual period by age 16, a doctor should be contacted to determine the cause and prescribe any treatment that may be necessary.
Menstrual Flow
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2012 EBSCO Publishing All rights reserved.
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