Ulcerative colitis is increasingly seen in clinical settings, especially among younger patients in gastroenterology. The symptoms typically include abdominal discomfort and abnormal stool, characterized by pain and distension in the lower left abdomen, and changes in bowel habits. Generally, the frequency of stool increases, often occurring more than a dozen times, at least six times or more. The stool characteristics are also indicative, generally appearing bloody and loose. Therefore, patients with ulcerative colitis need standardized diagnosis and treatment. The treatment mainly consists of two types: the first is lifestyle and dietary management; the second is medication. For diet, it is recommended that patients eat easily digestible, low-residue, high-quality protein foods to enhance nutritional support. Medicinal options may include drugs that regulate intestinal flora, protect the gastrointestinal mucosa, and others like amino salicylates. However, if complications such as gastrointestinal perforation, obstruction, or bleeding occur, surgical treatment is recommended. (Please consult a doctor for specific medication usage and do not self-medicate.)