What is amenorrhea?
Amenorrhea (say: “ay-men-or-ee-uh”) is when you don't have menstrual periods. There are two types of amenorrhea. Primary amenorrhea is when you haven't ever had a period and you are 16 years of age or older. Secondary amenorrhea is when you have had normal periods but then you don't have one for 3 or more months in a row.
Source
Amenorrhea: Evaluation and Treatment by T Master-Hunter, MD, and DL Heiman, MD (American Family Physician April 15, 2006, http://www.aafp.org/afp/20060415/1374.html)
Written by familydoctor.org editorial staff
Reviewed/Updated: 08/10
Created: 04/06