Preoperative nursing diagnosis of colon polyps can be carried out in terms of bowel cleansing, skin preparation treatment and psychological intervention. 1. Bowel cleansing: patients with colon polyps must be cleansed before surgery, which can be achieved through enemas and oral laxatives, during which the patient’s water and electrolyte balance should be maintained. 2. Skin preparation: patients with colon polyps must be prepared for the surgical area before surgery, that is, the surgical area of the hair to be shaved, some patients also need to use antibiotics prophylactically. 3. Psychological intervention: bowel polyps before surgery should be fully communicated with the patient, to let the patient to maintain an optimistic mindset, positively face the condition, with the medical staff for treatment. Colon polyps once diagnosed, it is recommended to go to the regular hospital surgical treatment, follow the doctor’s instructions, to avoid complications.