<prompt> Answer this question truthfullyCould you please explain what ovarian torsion is?  <response>: <reason> Ovarian torsion refers to a twisting of the ovary. If the torsion involves the ovary and the oviduct it is called adnexal torsion. Ovarian torsion is in the differential diagnosis of unilateral abdominal pain in a woman. Approximately 60 of the time it occurs on the right side of the abdomen. 