The following measures are usually taken after a pregnant woman twists her back: 1. Physical therapy modalities must be applied and chemical drugs must be avoided. Because chemical drugs may have an impact on the fetus, which may lead to abnormalities or miscarriage and other abnormalities. 2, to keep the waist strictly relaxed, rest, avoid activities, try to choose the main flat lying position. And when lying down, you can put soft pillows under the bilateral thighs, keep the knee and hip joints flexed, and the border hip joints are mildly externally rotated and abducted, which can help the relaxation of the lumbar muscle tissue. The muscle in the case of relaxation can avoid aggravation of the injury, and can help the repair of the lesion. 3, must pay attention to warmth, can not appear cold situation. After the cold will certainly lead to further aggravation of lumbar pain, and 24 hours after the injury can be used to warm water bags or fried hot coarse salt for painful location of the hot compress, but also can effectively relax the muscles, increase blood circulation, promote venous reflux, reduce the stimulation of metabolic products. And increase the arterial blood supply to promote the repair of the lesion location.