MARTIN RIEDL / SCIENCE PHOTO LIBRARY MARTIN RIEDL / SCIENCE PHOTO LIBRARY
Stomach pain. Woman holding her abdomen in pain. Abdominal pain has many causes, including constipation or indigestion. It may also be caused by the cramps that occur during a woman's menstrual cycle. These cramps are the strong uterine contractions that expel the lining of the uterus. Pain may also be experienced when an egg is expelled from the ovaries (ovulation).
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