There is pressure in the human abdominal cavity, between 0 and 5 mmHg in physiological state, related to the individual’s body shape, abdominal features, muscle tone. There is pressure in the human abdominal cavity, called intra-abdominal pressure, refers to the intra-abdominal pressure, normally zero or close to zero, but it does not mean that there is no pressure value in the abdominal cavity. Most scholars have shown that the value of abdominal pressure between 0-10 centimeters of water column, that is to say, abdominal pressure physiological state between 0 to 5 mmHg, and individual body shape, abdominal features, muscle tone. Abdominal pressure is the deep inhalation and shallow exhalation, the diaphragm down to maintain the pressure in the abdomen of a physiological function. The body uses this to promote blood circulation and support the trunk. Abdominal pressure has its normal value range, high intra-abdominal pressure on the function of various organs and hemodynamics, respiratory mechanics have an impact. Factors such as constipation, chronic bronchitis, prostate hypertrophy, and heavy physical activity can lead to increased abdominal pressure, and may even cause diseases such as abdominal wall hernias. If a patient experiences uncomfortable symptoms suspected to be related to abdominal pressure, it is recommended to go to the hospital as soon as possible in order to avoid delaying the condition.