It is possible to lose weight in colitis. Patients with colitis tend to suffer from abdominal pain, diarrhea and other symptoms, and if they are not treated effectively for a long period of time, the symptoms may become more and more serious, and they may also suffer from a loss of appetite, which may lead to poor digestion and absorption, and loss of nutrients. As a result, patients with colitis may suffer from wasting. However, some patients with colitis may not experience wasting, and the wasting may be due to the coexistence of other pathologies, such as diabetes, malignant space-occupying pathologies, etc. Therefore, for colitis patients with symptoms of wasting, it is recommended to consult a doctor in a timely manner, after the doctor’s interview, combined with the patient’s other symptoms and the results of related programs, to determine the cause of the disease and then targeted treatment.