Pregnant women should try not to lift heavy objects, but there is no uniform rule on how heavy objects should not be lifted, and there is a certain relationship with the specific pregnancy week, pregnancy performance, personal tolerance, etc. Pregnant women must pay attention to their abdomen when lifting objects, and when they find that they need abdominal force to lift them, they should stop lifting them. In the first 3 months and the second 3 months of pregnancy, pregnant women should absolutely avoid carrying heavy objects during the waist and abdomen force, the abdominal cavity pressure may induce uterine contractions and cause preterm abortion or preterm labor symptoms. The middle 4 months of pregnancy, the pregnant woman is relatively good health, the fetus is relatively safe and stable, pregnant women can carry out physical labor within their ability, you can carry some appropriate weight items, but avoid excessive force, about 3-5kg weight should be able to bear, as long as the abdominal pressure does not increase generally will not affect the fetus. If the placenta is too low during pregnancy or if you have gestational hypertension syndrome, you should avoid carrying heavy objects. You should also be careful not to twist your waist when you apply force to your body to avoid indirect effects on your abdomen.