4. Pregnancy
When women become pregnant, their risk of ovarian torsion is increased. Women usually develop something called a corpus luteum cyst in the first trimester of pregnancy. This can lead to ovarian torsion in the early months of pregnancy. By the second trimester, the cyst is gone, and the risk of developing this condition during pregnancy is reduced. The torsion happens when the high levels of hormones in the first trimester cause the ligaments to relax and leave room for the ovary to move around and wrap around them.
Once the hormone levels drop down in the later trimesters, the ligaments become tight again, and the ovaries are less likely to move around. If doctors notice ovarian torsion in the first trimester, they will usually just keep an eye on it and wait for it to fix itself.
Most would prefer not to do surgery due to the risk to the developing baby. If the problem has not corrected itself by the time the baby is born, surgery may be needed to correct it.