The symptom of thigh pain at 35 weeks of pregnancy is caused by the gradual enlargement of the uterus, the fetus into the pelvis and the compression of the sciatic nerve. If the enlarged abdomen is obvious, it is recommended to use a belly band to hold up the enlarged abdomen appropriately to reduce the pressure on the lower limbs. If you do not get any relief after rest, you may also consider whether it is caused by calcium deficiency, you can take appropriate calcium supplements, and eat more milk, bone broth, soy products and other foods in your diet, which can play a good role in calcium supplementation. It is recommended that pregnant women do some exercise if conditions allow, and find suitable ways to relieve the pain and discomfort, must pay attention to rest, do not overwork and stand, generally this symptom until after the birth of most can slowly disappear. If the above methods are not reasonably dealt with, the patient’s pain symptoms significantly aggravated, or appear asymmetric thickness of the legs, must go to the hospital for examination, do not delay the disease, causing other complications.