During pregnancy, due to the increasing size of the uterus and weight, the pressure on the lumbar spine increases, causing the lumbar disc to protrude and press on the nerves, stimulating the nerve roots and causing back pain, buttock pain, leg pain and so on. During pregnancy, this condition should be treated symptomatically, and attention should be paid to nutrition, calcium and protein supplementation, as well as proper activity, which can relieve this pain. The pain will gradually disappear after delivery, so don’t worry too much. Endocrine disorders, calcium deficiency, etc. occurring during pregnancy can also cause pain in joints, ligaments, etc. All these causes cause pain in the lower back, buttocks, bones, joints, ligaments, sciatic nerve, etc. of pregnant women.