Sore and swollen walking thighs in late pregnancy are usually caused by poor blood circulation due to the enlargement of the uterus and lack of calcium, etc. Pregnant women can alleviate them by applying hot compresses, elevating the legs and taking calcium supplements. In late pregnancy, due to the enlargement of the uterus, the pressure to the inferior vena cava reflux, resulting in poor blood circulation, there will be walking thighs soreness and swelling, falling. Pregnant women can use hot towels to apply external compresses to the legs to promote blood circulation in the legs, thus reducing the symptoms of leg soreness and discomfort. You can also relieve thigh soreness by elevating your legs to reduce the pressure on the blood as it returns to the body. Calcium demand will be greater in late pregnancy, if the pregnant woman is deficient in calcium, it will also lead to walking thighs in late pregnancy, accompanied by the phenomenon of leg cramps. Pregnant women should take oral calcium tablets as prescribed by the doctor. Usually in the diet, you also need to eat more seaweed, soy products, eggs, milk, fish and other calcium-rich foods. It is recommended that pregnant women pay attention to balanced nutrition in late pregnancy, do not walk for a long time, if the above symptoms are not relieved for a long time, it is recommended to go to the hospital in time.