It is very common for pregnant women to have sore legs in early pregnancy, the specific reasons are as follows: 1, caused by overwork, such as walking more during pregnancy, or strenuous exercise, causing the accumulation of lactic acid in the leg muscles, may appear sore legs; 2, some pregnant women may suffer from varicose veins in the lower limbs due to prolonged standing, because the veins in the lower limbs are tortuous and dilated, resulting in poor venous reflux, there may be sore legs The symptoms of discomfort may cause leg swelling and soreness to increase when they are tired or stand for a long time. If the above symptoms occur, we should pay attention to rest, avoid exertion, massage the legs properly to promote blood circulation in the legs and relieve the soreness and swelling of the legs.