Although back pain during pregnancy is a common disease that cannot be easily avoided, however, pregnant women can prevent and relieve back pain by maintaining correct standing posture and avoiding long standing in their lives. 1.In early pregnancy, pay attention to the right amount of rest to make your body relaxed and reduce fatigue. 2, in the middle and late pregnancy, pregnant women should not continue to do heavy housework, wash clothes, put things on high, carry heavy things, carry too heavy bags, etc. will affect the waist, pregnant women should avoid. 3, each walk or walking time should be calculated, should not be too long. When you go out shopping, you should take a break while walking. The weather is too cold or too hot, it is best to take a cab. Avoid squeezing and standing for a long time when riding the bus. 4, the correct standing and sitting posture. The correct standing posture is slightly divided legs, back straight, chest up, jaw closed. When sitting, try to sit in, back with the lower part of the back against the back, sitting can be placed in the lumbar position of a soft pillow, can increase the lumbar support, or put the feet on a small stool can also avoid back pain. In addition, to choose a chair that suits you, the chair is too high or too low are not good, easy to sink the soft cushion to sit up tired, so choose a harder chair cushion. 5, usually do more lumbar massage, let family members help, pay attention to massage when the action should be light, do not squeeze the abdomen. 6, usually more hot towels, gauze and hot water bags hot compresses, hot compresses for half an hour a day, can reduce the pain sensation. 7, supplemental vitamins, during pregnancy, due to the rapid development of the fetus, pregnant mothers are easy to lack of various nutrients and minerals, especially calcium, vitamins and iron, etc., once the lack is easy to cause back pain. When the back pain is accompanied by leg cramps and sciatica, besides taking calcium and vitamin B1 supplements, you should also consult your doctor for help. For those who are mildly deficient, dietary supplements are recommended. 8, pregnant women should learn to choose the right chair for themselves, the height should be moderate, to 40 cm is appropriate. When sitting to maintain a good center of gravity, as far as possible to the back of the chair to reduce the force on their bodies. 9, pay attention to maintain the correct posture. Sitting has a sitting phase standing phase, not because of the discomfort of pregnancy and change the normal posture. This will make the force surface change and lead to local fatigue of the body. The same posture should not last more than an hour. 10, timely change of high heels, choose soft materials, thicker and wider soles of low-heeled shoes. 11, pregnant women need to choose a hard bed, not suitable for sleeping too soft material bed. 12.Be sure to avoid weight-bearing, otherwise it will make the waist bend under pressure. 13, do a good job to prevent cold measures, pay attention to the waist warmth. 12, pregnant women should pay attention to their weight growth, especially in late pregnancy. Weight gain is too fast, pregnant women can maintain a normal regular diet, to refuse night snacks. 15.Act gently and not too fast when moving. If the action is too violent, the pregnant woman is likely to fall because of unstable standing.