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.
Written by familydoctor.org editorial staff