Leg pain is a common clinical symptom, the symptoms of leg pain in women during pregnancy may or may not be directly related to pregnancy, the common main causes include: 1, pregnant women do not pay attention to personal protection during pregnancy, using cold water to wash face and feet, blowing cold wind, stimulated by wind and cold and cause inflammatory joint disease causing leg pain. 2, pregnant women do not control the diet during pregnancy, eating a lot of 3.Pregnant women do not take calcium supplements during pregnancy, do not drink milk, do not eat soy products, do not take sunlight, lack of physical activity and other factors, resulting in the loss of bone calcium caused by osteoporosis, and lower limb bone and joint pain symptoms.