Sigmoiditis is an inflammatory bowel disease confined to the sigmoid colon. Symptomatic treatment is the mainstay of treatment, and common treatments include rehydration therapy, medication and surgery, etc. There is no such thing as the best cure. 1. Rehydration therapy: sigmoid colonitis is mostly manifested as diarrhea and mucous blood stools, which often cause electrolyte and acid-base balance disorders, and rehydration therapy is mostly needed. Patients can take oral rehydration salts; patients with severe nausea and vomiting symptoms can maintain the stability of the internal environment through intravenous infusion. 2. Medication: For patients with mild or moderate sigmoiditis, aminosalicylic acid and salicylazosulfapyridine can be used to reduce the inflammation as prescribed by the doctor; for patients with severe condition, glucocorticosteroids or immunosuppressant can be used as prescribed by the doctor. 3. Surgery: Surgery is not the main treatment for sigmoiditis. If sigmoiditis is complicated by hemorrhage, intestinal perforation, etc., sigmoidectomy is needed. To sum up, when there is sigmoiditis, it is recommended to go to the hospital in time, clarify the cause of the disease, and receive standardized treatment under the guidance of professional physicians.