A fetus born between 37 and 41 weeks of gestation is considered full term. Fetuses born before 28 weeks of gestation are aborted, those born between 28 and 37 weeks of gestation are premature, those born between 41 and 42 weeks of gestation are delayed pregnancies, and those born beyond 42 weeks are overdue pregnancies. False contractions can occur in the middle and end of pregnancy, and they become more frequent in the second trimester, especially at night. False contractions are just a feeling of tightness and hardness in the stomach, and there is no obvious pain, so no special treatment is needed. If the pain is obvious, it is suspected to be a sign of imminent birth. If the pain is obvious before 37 weeks, it should be treated with fetal preservation and can be suppressed with magnesium sulfate or ritodrine. After 34 weeks of pregnancy, the chance of fetal birth survival increases significantly. Although 37 weeks is full term, if the fetus weighs less than 2500g after birth, or cries poorly, etc., it may need to be referred to pediatric treatment.