The most obvious site of typhoid lesions is the intestinal tract, which is more prone to intestinal bleeding and intestinal perforation. Intestinal bleeding is the most common complication, especially in patients with diarrhea. When small amounts of intestinal bleeding occur, there are usually no obvious symptoms, or only mild headache and increased pulse rate. In the case of massive intestinal bleeding, there is a sudden drop in temperature, pulse becomes rapid, body temperature and pulse are crossed, and there are signs of shock such as dizziness, pallor, irritability, cold sweat, and drop in blood pressure. In severe cases, intestinal perforation occurs. Intestinal perforation often manifests as severe pain in the right lower abdomen, accompanied by nausea, vomiting, cold sweats, shortness of breath, confusion, as well as a drop in body temperature and blood pressure. Intestinal perforation is a serious complication in patients with typhoid fever and can be life-threatening in severe cases.