The numbness of the feet of pregnant women may be related to the following causes: 1. Poor blood circulation in the lower limbs, if the patient sits or stands for a long time during pregnancy, or often curls up in bed, then it will lead to poor blood circulation in the lower limbs, which in turn produces purple, cold and numb feet. In addition, during the rapid growth of the fetus, if the patient often lies on his back or sits up, then the fetus and amniotic fluid will press back on the abdominal aorta, resulting in poor blood supply to the entire lower extremities, which will also produce numbness in the feet. 2, may be caused by some peripheral nerve lesions, such as the patient in the process of pregnancy, the complication of lumbar disc herniation of such diseases, then The nerve roots are stimulated, resulting in numbness in the feet. 3, may also be due to excessive extrusion of the foot for a long time, if the patient’s weight growth is too fast during pregnancy, or due to some bad posture, resulting in excessive pressure on a part of the foot for a long time, will also produce the symptoms of numbness in the foot.