Leg pain in the fifth month of pregnancy needs to be treated according to the cause, if it is caused by physiological factors, it can be treated by general treatment; if it is caused by pathological factors, it can be treated by medication, improvement of dietary habits and lifestyle habits. 1. Physiological factors: the uterus will gradually increase in the fifth month of pregnancy, due to the excessive pressure on the abdomen, it will pull the ligaments leading to edema and pain in the legs. For physiological factors, can be relieved by local massage, local hot compresses and other methods, do not need to apply any drugs. 2. Pathological factors: 5 months pregnant leg pain may be related to calcium deficiency, due to the rapid growth and development of the fetus, competitive intake of the mother’s nutrition. You can choose to take oral calcium carbonate, calcium lactate and other drugs under the guidance of the physician, and at the same time need to be balanced nutrition, eat more milk, fish, shrimp, eggs and other foods. There may be other reasons for leg pain, you need to go to the hospital for examination to clarify the diagnosis, follow the doctor’s instructions for treatment, can not just indiscriminate use of drugs.