Colitis can be divided into acute and chronic types. If it occurs acutely, it generally presents symptoms such as abdominal pain, diarrhea, vomiting, and bloating. Some may experience fever, chills, and body aches. These can be diagnosed with routine blood tests and stool tests. If diarrhea recurs over a period exceeding two months, it suggests chronic diarrhea, such as chronic colitis, which is also characterized mainly by abdominal pain and diarrhea. In the case of inflammatory bowel disease, besides abdominal pain and diarrhea, a significant feature often includes hemolytic disease. A definitive diagnosis can be made with a colonoscopy, often accompanied by symptoms such as weight loss, fatigue, or anemia.