The main symptoms of Crohn’s disease include fever, fatigue, abdominal pain, diarrhea, etc. Crohn’s disease is an inflammatory disease of the intestinal tract caused by various factors, and the central nervous system of the human body temperature and body fluids may become dysregulated under the effect of the metabolic reaction of the human immune system, resulting in continuous fever and weakness of the extremities. The superficial mucosal tissue of the intestine is affected by the inflammatory disease, resulting in ulcerative damage, contractile spasm and paroxysmal abdominal pain when the patient is stimulated by gastrointestinal fluid or external substances. Due to the thickening and swelling of the superficial mucosal tissue of the intestine, its normal decomposition and absorption functions are hindered, and a large amount of water and nutrients can only be excreted from the body in the form of excretion, so patients with this disease are often accompanied by symptoms such as persistent diarrhea, loose stools and malnutrition.