The menstrual cycle plays an essential role in human reproduction. However, most other animals don't experience menstruation. So, which other species have periods, and what's the evolutionary point of ...

Dr. Nita Landry shares five things people should know about pain and periods. Period pain is a fact of life for many women, yet many don't know that what they are experiencing might not be normal.

Getting two periods in one month may not be cause for any concern. For some, it may even be the norm. The typical menstrual cycle is 28 days, but 24- to 38-day cycles fall within the normal range.

Period cramps without a period may be caused by ovulation, fibroids. endometriosis, or pregnancy. Over-the-counter (OTC) pain medications like Advil can help treat most cramps. See a healthcare ...

Researchers are finally trying to understand the complex causes of menstrual pain, or dysmenorrhea—and potential solutions.

Renita White, MD, is an obstetrician/gynecologist at Georgia Obstetrics and Gynecology in Atlanta, Georgia. Her areas of expertise include fibroids, irregular vaginal ...