In the third trimester of pregnancy, in order to let the baby enter the basin smoothly during delivery, the maternal endocrine changes. Progesterone and relaxin in the body relax the ligaments of pelvis and lumbar vertebrae and dilate the birth canal. If you are overworked or exercise hard after delivery, the hormone metabolism in the body is incomplete and the flexibility of ligaments decreases, which leads to the structural stability of the spine and pelvis. In addition, in the tenth month of pregnancy, the lumbar intervertebral disc and pelvis are in a long-term load-bearing state, and the pressure continues to increase. Postpartum strenuous exercise is easy to cause lumbar disc herniation.

Therefore, it is generally recommended that pregnant women exercise after half a year, so that the body can return to the pre-pregnancy state and the spine and pelvis are relatively stable. If you feel in good health, you can do some simple exercises, but try to stretch the soft tissues and spine, and don't practice excessive weight-bearing exercises. One-sided sports like badminton are also inappropriate.