The belly is tight and hard during pregnancy, you need to determine whether the contractions are physiological contractions or pathological contractions, physiological contractions need not be nervous, strengthen the rest, such as pathological contractions, can be given to inhibit contractions to protect the fetus treatment. 1. Physiological contractions: often painless, low frequency, usually does not lead to changes in the cervix of the pregnant woman, can often be relieved by rest. 2. Pathological contractions: contrary to physiological contractions, they often cause changes in the cervix, have a high frequency, and can be painful. According to the week of pregnancy, the treatment is different. If less than 20 weeks, can be given progesterone and other treatments; 20-34 weeks can be given ritodrine hydrochloride to inhibit contractions, cefuroxime anti-infective, etc.; 34 weeks can be divided into vaginal delivery and cesarean section according to the contraindication to vaginal delivery. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, pay attention to more rest, and at the same time, should relax, to avoid tension, anxiety. Patients who have contractions during pregnancy and are unable to determine whether they are physiologic or pathologic need to consult a doctor in time to avoid delaying the time to preserve the fetus.