Intestinal hypoxia refers to the phenomenon that intestinal ischemia and hypoxia can occur in the intestine due to the reduction or interruption of blood supply to the intestinal vascular tissue. The lack of oxygen in the intestine will weaken the peristaltic function of the large intestine and cause a large number of anaerobic bacteria to multiply and proliferate in the intestine, resulting in gastric distension and bloating, causing indigestion. A large number of toxins accumulate in the intestinal tract, the human body will absorb a large number of toxins to cause adverse effects on the body, intestinal hypoxia will also lead to intestinal necrosis. The cause of intestinal hypoxia is mainly caused by intestinal diseases, such as intestinal obstruction, intussusception, ulcerative colitis or infectious diarrhea, which can cause intestinal hypoxia. Intestinal hypoxia can bring adverse effects on human health. In daily life, we should pay attention to the dietary regimen and eat more foods that are easy to digest and have the effect of promoting digestion, such as corn, fungus, bananas, etc.