Both physical and physiological stresses are high during pregnancy. As the pregnancy lengthens, the fetus grows larger and larger. The increase in the size of the uterus can compress the maternal nerves and increase the pressure on the lumbar spine, resulting in the phenomenon of sciatica. In addition, the hormone level of the body changes greatly during pregnancy, especially when the number of pregnancies is high and vitamin D is not properly supplemented, osteoporosis can occur. This produces lumbosacral discomfort and pain and discomfort in the limbs, which may be related to the secretion of relaxin by the placenta leading to relaxation of the pelvic ligaments, intervertebral joints and ligaments, and some pregnant women may experience relaxation and separation of the pubic symphysis resulting in significant pain.