The usual habit of tightening the abdomen is not allowed after pregnancy. If you often tighten your stomach in early pregnancy, it may increase the probability of preeclampsia. This is because abdominal contraction may induce uterine contraction and cause abdominal pain or irregular bleeding, which may cause miscarriage if it lasts for a long time. In the middle or late stages of pregnancy, if you often tighten the abdomen in the process of tightening the abdomen, the uterus will also be squeezed inward, affecting the growth space of the fetus, in addition, it may also cause hypoxia. In late pregnancy frequent stimulation of uterine contractions, also prone to premature labor or premature rupture of membranes. Pregnant women can tighten the abdomen after delivery, adhere to the abdominal muscle exercise, can make the abdomen recover better, in addition to exercise can also use the abdominal band, passive make the abdominal wall contraction is also a good way to tighten the abdomen. 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 rest, at the same time should be relaxed, to avoid nervousness, anxiety, there is any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.