Sciatica occurs during the sixth month of pregnancy mainly because the enlarged uterus presses on the sciatic nerve, which causes pain due to poor local circulation. The majority of patients can relieve the pain by changing positions or by light massage. However, if the pain is severe, oral vitamin B1 is recommended to nourish the nerves and relieve the sciatic nerve pain, which in most cases will resolve on its own after delivery. It is also recommended that if the pain is unbearable, it is best to go to an orthopedic surgeon for further examination to rule out sciatic nerve pain caused by organic lesions of the bone. It is also recommended to get more sunlight, take more calcium, drink more bone broth and milk during pregnancy to avoid pain caused by calcium deficiency.