Crohn's disease is not contagious and its specific causes are not particularly clear. It is an inflammatory bowel disease and can be treated in the gastroenterology department. Typical symptoms include abdominal pain, diarrhea, accompanied by fever and nutritional disorders, among others. It may also be complicated by acute perforation, rectal bleeding, intra-abdominal abscesses, and malabsorption syndrome. The course of the disease tends to be prolonged and recurrent, making it difficult to cure. The clarity and severity of the lesion, the length of the course of the disease, and the rate of recurrence after surgery are related. Because it is not contagious, it cannot be transmitted among the population.