Here is an explanation: The female body undergoes hormonal changes throughout the menstrual cycle. One hormone, called relaxin softens/ loosens ligaments throughout the body, including uterine ligaments. The purpose of relaxin is to allow the ligaments of the uterus to grow with the uterus during pregnancy and to allow the hips to be extra flexible to make room for the baby for birth.
- During the menstrual cycle, the uterine ligaments are looser the week before menstruation begins. Once menstruation starts relaxin stops being produced.
- Pregnancy: Relaxin builds up for 9 months until the baby is born.
- Postpartum: It takes 3 months to completely rid the body of relaxin. At 6 months postpartum, the uterine ligaments go back to their original length, and it takes 2 years postpartum for ligaments to regain their tensile strength.
Follow these rules to prevent prolapse and other misalignments
- Avoid heavy pushing/ lifting/ pulling and high impact exercises like running 7 days before menstruation and during heavy menstrual bleeding.
- Avoid heavy pushing/ lifting/ pulling and high impact exercise during pregnancy and up to 2 years postpartum.
- If you strength train, do not use weight that causes you to bear down. Even chronic coughing and constipation cause bearing down that can cause prolapse. A sign of prolapse is peeing when you sneeze, cough or are closer to the beginning of your period.
- If you like cardio, it's safer to hike or power walk to get your heart rate up. Avoid jumping and running