Prolonged active abdominal tightening is generally harmless, but prolonged passive abdominal tightening may lead to increased abdominal pressure, which can lead to loss of appetite, constipation and other hazards. There are two ways to tighten the abdomen: active and passive. 1. Active abdominal tightening: that is, the patient with the power of the lower abdomen to tighten the abdominal muscles, this tightening of the abdomen is basically harmless, can promote the patient’s intestinal peristalsis, promote absorption, and has a certain weight loss effect. 2. Passive abdominal tightening: usually used for long-term abdominal tightening with abdominal belt, if the abdominal contraction belt is too tight, the abdominal pressure may increase, thus increasing the pressure on the intestinal tract, resulting in slow gastrointestinal peristalsis, loss of appetite, constipation and other symptoms after meals. Especially for postpartum patients, long-term use of abdominal constriction bands will increase abdominal pressure, leading to pelvic floor muscle relaxation, which may aggravate uterine prolapse and urinary leakage. In the clinic, patients are advised to use abdominal contraction and exercise scientifically under the guidance of the doctor.