At midcycle, 2 weeks before or 2 weeks after a menses, the main physiologic event is ovulation. Most women are not aware of ovulation but some are on a regular basis. When noticeable pain happens at midcycle, physicians often attribute the pain to a small amount of bleeding that can occur from the site of egg ovulation. Usually this type of pain alternates from side to side in different months although it can present consistently on one side if ovulation seems to favor one ovary.
There can also be cyclical pain presentations from non-gynecological causes such as:
- spinal cord disc disease or tumor
- irritable bowel syndrome - symptoms can be much worse around the time of menses .
- somatic musculoskeletal pain - different muscles and nerves of the abdominal wall can also present cyclically