Crohn's disease is a chronic nonspecific inflammatory disease, characterized by segmental and skip lesions, longitudinal ulcers that are relatively deep, and can affect various parts of the digestive tract from the mouth to the anus, primarily occurring near the end of the ileum and adjacent colon. This disease tends to recur repeatedly, and currently, there are no particularly effective treatment methods. At present, the highest incidence rates are in North America and Northern Europe, and the incidence in China is also showing an increasing trend year by year. The main symptoms include abdominal pain, diarrhea, and weight loss. Generally, this disease is difficult to cure and tends to recur throughout a person's life.