Colitis here is divided into acute colitis and chronic colitis. Acute colitis is caused by acute inflammation, mainly due to unsanitary diets. Its common symptoms include abdominal pain, diarrhea, nausea, vomiting, and fever. In this condition, vomiting occurs. The main symptoms of chronic colitis are abdominal pain, diarrhea, or seeing snot-like mucus in the stool. This condition is generally visible during a colonoscopy where the intestines show hyperemia, edema, and erosion. Vomiting generally does not occur in chronic colitis. If vomiting does appear in chronic colitis, it might indicate that there is also a problem with the stomach, such as chronic gastritis or gastric ulcers, etc., so further examination is needed.