Tightness and hardness of the stomach are not necessarily true contractions, but may also be false contractions, which are different and need to be analyzed specifically. Generally speaking, false contractions occur in a few pregnant women in the middle of pregnancy, and most of them occur in late pregnancy. Its appearance is not regular, and each time the time period, the interval is relatively long, pregnant women will not have obvious pain, generally change posture or rest can be relieved; while the true contractions occur after 37 weeks of pregnancy, generally regular, each contraction lasts more and more long, the time interval is also getting shorter and shorter, the pregnant woman can feel the continuous contraction and cramping, the pain will be more and more strong. At this time, changing the body position posture and rest can not relieve the symptoms. Pregnant women who experience tightening and hardening of the stomach are advised to visit the hospital for timely examination to clarify the situation. If the contractions are genuine, timely treatment will be carried out. If false contractions, it is recommended not to walk long distances or carry heavy objects, pay attention to the combination of work and rest, and maintain a good mood, which can be avoided to a certain extent.