Amenorrhea is a medical term that describes the absence of periods when you are not pregnant. This includes primary amenorrhea in which you have no history of menstruation by age 15 and secondary ...

If you’ve missed your period, your first thought may be that you’re pregnant. But pregnancy isn’t the only cause of a missed period. If you’ve confirmed that you’re not pregnant, it can be helpful to ...

Ultimately, whether you're a runner or not, it's always a good idea to mention any menstrual cycle changes to your doctor. Amenorrhea can increase your risk for osteoporosis, as well as impact your ...