Firstly, Crohn's disease is not contagious and cannot be transmitted between people. Crohn's disease is an inflammatory bowel disease related to autoimmunity. The cause is still unclear, and currently, the medical community does not know what causes it. The main symptoms are abdominal pain, diarrhea, and abdominal masses. A colonoscopy can definitively diagnose this disease. Under colonoscopy, longitudinal deep ulcers can be seen on the mucosa of the intestines, which can be diagnosed as Crohn's disease. Currently, there are no specific drugs for the treatment of Crohn's disease, and treatment is very challenging and prone to relapse. Therefore, there is no particularly good treatment method or effective cure for this disease in the medical community at present.