Causes of leg fatigue and pain at night during the 25th week of pregnancy.

After pregnancy, with the increase of pregnancy, the uterus gradually increases, and the support for the waist continues to increase. The ligamentum teres uteri is relaxed due to long-term traction, which leads to the relaxation of sacrospinous ligament and oppression of pelvic nerves and blood vessels, which makes many expectant mothers feel backache and leg pain. This kind of low back pain can gradually disappear with the recovery of postpartum lumbar muscle strength.

Leg pain in the second and third trimester of pregnancy is mostly caused by rapid fetal pain, which gradually enlarges the uterus and moves the abdomen forward. In order to maintain the balance of the body, the upper body leans back compensatory, resulting in excessive lordosis of the spine and continuous tension of the extensor dorsi, which leads to excessive fatigue of the back and is easy to cause backache. Generally speaking, symptoms can be alleviated after rest.

In addition, if the pregnant mother lacks calcium during pregnancy, it will also cause leg pain.