The main cause of chronic colitis pain in the left lower abdomen for more than ten years is the repeated stimulation of inflammation, and the discomfort can be relieved by means of general treatment, medication and surgery. 1. General treatment: In daily life, patients are advised to have a light diet, quit smoking and drinking, avoid spicy and stimulating food, reduce oil and salt, and strengthen nutrition. 2. Medication: Atropine, scopolamine and other drugs can be taken to relieve pain; LiuZiSulPyridine and other drugs to reduce inflammation; metronidazole, ciprofloxacin and other drugs can be taken to control inflammation in the event of pathogenic bacterial infection. Drugs need to be used in strict compliance with the doctor’s instructions, the emergence of adverse reactions to timely consultation, drug allergy is prohibited. 3. Surgical treatment: If non-surgical treatment is ineffective, surgical treatment can be chosen under the advice of a doctor. The above symptoms should be actively standardized treatment under the guidance of a professional physician, which can effectively reduce the patient’s pain and discomfort and improve the patient’s quality of life.