Leg pain during pregnancy may be caused by calcium deficiency, oversized fetus, muscle and ligament strain, etc. If the leg pain is relatively serious, you should pay attention to proper rest, soak your feet every night before going to bed, avoid standing for a long time, and elevate your legs every night when you sleep to help relieve the leg pain. If the pain is not relieved and has a tendency to worsen, you need to go to the hospital for treatment. 1, calcium deficiency: because of the demand for calcium of pregnant women and fetuses, if you do not pay attention to calcium supplementation during pregnancy will cause calcium deficiency, leg muscle spasms lead to leg pain, you can choose the relevant food and drugs to supplement calcium, such as milk, calcium tablets, etc., but also more sunshine every day to promote the body’s absorption of calcium, it is best to supplement calcium before bedtime, the effect is better; 2, too big fetus: too big fetus compressing pregnant women’s nerves may also Leg pain, timely consultation with the obstetrics and gynecology clinic, the relevant ultrasound examination, according to the results to determine the cause, and treatment of the cause; 3, muscle ligament strain: after pregnancy weight gain, the lower limbs to bear the weight increase, muscle ligament strain, ligament strain may also lead to leg pain; 4, other: some pregnant women are afraid of heat after pregnancy, poor warmth caused by gastrocnemius muscle spasm, at this time may also cause leg pain.