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Ovarian torsion

Ovarian torsion is a condition in which an ovary twists or turns on its supporting ligament, cutting off its blood supply. Women with this condition have pain that begins suddenly and steadily gets worse.

Ovarian torsion can occur during pregnancy. It is most common during the first trimester of pregnancy but may occur anytime during pregnancy. Prompt surgical treatment of ovarian torsion is especially important during pregnancy to prevent tissue death (necrosis) or preterm labor.