The main sign of amenorrhea is missing a menstrual period.
Regular periods are a sign of overall good health. Missing a period may mean that you are pregnant or that something is going wrong (see What are the causes of amenorrhea?). It’s important to tell your health care provider if you miss a period so he or she can begin to find out what is happening in your body.
Amenorrhea itself is not a disease, but is usually a symptom of another condition. Depending on that condition, a woman might experience other symptoms, such as headache, vision changes, hair loss, or excess facial hair.