Crohn's disease is an inflammatory bowel disease primarily affecting the terminal ileum and the right half of the colon. Typical symptoms include abdominal pain, diarrhea, intestinal obstruction, and it may also lead to complications such as intestinal perforation or rectal bleeding. Additionally, it can affect joints, skin, liver, and other organs. The course of the disease is often recurrent and difficult to cure completely. Currently, there are no specifically effective drugs. Severe complications may require surgical treatment. Mild symptoms can be controlled with medication. Dietary guidelines suggest eating small, frequent meals that are high in nutrition and low in fat, and it is important to consume more vegetables and supplement with vitamin C.