Severe typhoid fever can occasionally lead to intestinal complications, the most serious being intestinal perforation or bleeding, usually affecting the small intestine. This happens when prolonged infection causes ulcers that eat through the intestinal wall, leading to leakage of intestinal contents into the abdomen—a condition called peritonitis. When this occurs, emergency surgery is needed. The procedure typically involves repairing or removing the damaged section of the intestine, cleaning the abdominal cavity to prevent infection, and giving strong antibiotics afterward. With prompt surgical care and post-operative management, most patients recover well and regain normal digestive function.