The medical name for “small intestine gas” is hernia, a common disease, including inguinal hernia, umbilical hernia, incisional hernia, etc., of which inguinal hernia is the most common in middle-aged and elderly men. If the inguinal hernia, most of the cases only for the abdomen and thigh root junction position of the inguinal area of the soft mass, standing, lying down or with a hand push on the disappearance of many patients in addition to the local uncomfortable also have no other symptoms, and therefore often overlooked or even considered no need to be treated. In fact, this is a misunderstanding, hernia not only need? to be treated, and should be treated as early as possible. Because hernia is not timely surgery, there is the possibility of acute complications. Acute episodes of hernia are known as incarcerations, which can occur in inguinal, umbilical and incisional hernias. The main cause of an incarcerated hernia is a sudden increase in intra-abdominal pressure, such as violent coughing, straining to relieve stools, breath-holding in forceful labor, etc., which causes more small intestine than usual to protrude outside the abdominal wall. The initial manifestation is a sudden increase in the size of the mass, localized pain, and how the mass, which is usually lost when lying down or pushed with the hand, suddenly can’t go back. What is the reason for this? An analogy would be good to understand. A rubber ball, a caliber slightly smaller than the diameter of the ball small mouth bottle, hard to top a rubber ball into the bottle, but then want to pour the ball out of the bottle is extremely difficult. The same is true for an incarcerated hernia, in which the intestinal tube is pushed out from a weak point (medically called the hernia ring, like the “bottle mouth” in the analogy) due to a sudden increase in pressure in the abdominal cavity, and the protruding tube gets stuck in the hernia ring (bottle mouth), and can’t go back into the abdominal cavity, so it’s easy to see why. Once incarceration occurs, there are many serious complications, such as obstruction of the intestinal tube leading to intestinal obstruction, and ischemia of the intestines due to the reduced blood supply caused by the prolonged entrapment of the intestinal tube. This is when symptoms such as severe abdominal cramps, nausea, vomiting and bloating occur. If the situation is further aggravated, eventually the blood supply to the intestinal tube completely stops causing intestinal necrosis, intestinal perforation, which can cause peritonitis, toxic shock or even lead to death. Once hernia incarceration occurs, it must be treated immediately, and surgery is the only effective treatment. For cases where the intestinal tube is compressed and ischemic, but not necrotic, surgery to loosen the hernia ring that is causing the compression and repair the hernia is sufficient. However, for longer ischemia, irreversible necrosis, perforation and other serious cases, the operation is relatively more complicated, need to remove the necrotic intestinal segments, and then connect the healthy intestinal segments, the first life-saving wait for half a year and then do the hernia repair surgery. However, due to the many complications of intestinal necrosis, rapid development and serious consequences, the condition is very dangerous and still has a certain mortality rate. And the original one operation became two operations, in vain, an additional knife. So hernia seems to be a minor problem, but in fact, it has the potential to cause serious acute complications. It is important to treat hernias before they occur to improve quality of life and to avoid incarceration. As the title of this article suggests, beware of acute hernia attacks!