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Mittelschmerz Causes

Just before the egg is released by the ovary, it stretches the membrane covering the ovary. This stretching results in pressure and pain. The fluid and blood released when the egg is released from the ovary may cause discomfort. Blood is very irritating to the tissues lining the abdominal cavity and could be responsible for the midcycle pain. The amount of pain varies tremendously from person to person. Most women do not have any discomfort. Others feel a mild pressure or twinge lasting a few hours. For a rare few, the pain is intense and can last for days. In severe cases, the pain may be mistaken for appendicitis.