Colitis belongs to the western medical diagnosis, colitis corresponding to the Chinese medicine diagnosis of abdominal pain, diarrhea or constipation, etc., can be treated with Chinese medicine. Chinese medicine emphasizes on evidence-based treatment, and the treatment should be based on the patient’s clinical symptoms and tongue and pulse. Different patients with colitis have different manifestations; if the manifestations are abdominal pain, rapid diarrhea, sticky and greasy stools, abdominal distension, intestinal tinnitus, burning pain in the anus, and loss of appetite, then one can choose to treat it by adding subtractions to Puerariae Scullcapae Lian Tang. If the manifestation of abdominal pain is obvious, acute and severe (discomfort in the lower abdomen, wanting to defecate very much, feeling of incomplete defecation after defecation), anal burning, dysentery with pus and blood (diarrhea, feces with pus and blood), etc., then Baiduweng Tang can be chosen to clear away heat and stop dysentery; according to the patient’s symptoms, add or subtract traditional Chinese medicine, and if the nausea and vomiting are obvious, then Chen Pi and Zhu Ru can be added appropriately. If you are detected with colitis, it is recommended to go to the hospital in time and be treated under the guidance of the doctor.