The symptom of thigh pain in 35 weeks of pregnancy is caused by the gradual enlargement of the uterus and the compression of the sciatic nerve by the entry of the fetus into the pelvis. In the later stages of pregnancy, the abdomen increases significantly, and if you walk or stand for a long period of time, it may compress the lower limbs to show the symptom of soreness of the thighs. It may also be caused by calcium deficiency during pregnancy. Pregnant women should pay attention to more rest and avoid prolonged standing and walking. If the abdomen is enlarged significantly, it is recommended to use a belly band to properly support the enlarged abdomen to reduce the pressure on the lower limbs. If there is no relief after resting, it may also be caused by calcium deficiency, which can be properly supplemented with calcium, and more milk, soy products and other foods in the diet to play a good role in calcium supplementation. It is recommended that if conditions permit, pregnant women should do some exercise and look for suitable ways to relieve the pain and discomfort, and must pay attention to rest, do not overwork and stand, generally this symptom will slowly disappear after delivery. If the above methods are not reasonably dealt with, the patient’s pain symptoms significantly worse, must go to a regular hospital through the intervention of a regular doctor gradual relief, to avoid causing other unnecessary complications.