After removal of a 0.3 cm colon polyp, you usually need to rest for 3 to 7 days, and the exact duration of rest varies from person to person. Colon polyps of 0.3 cm are small polyps and are usually removed endoscopically, which is a minimally invasive procedure. After the operation, there will be a wound, and there will also be pain, distension and other discomforts. As each patient’s condition and physique is different, the recovery time is also different, and patients can rest for 3 to 7 days according to their own conditions. Within 3 days after the operation, patients should mainly eat fluids or semi-fluids with little residue, such as rice paste, powder, soft noodles, etc., and then gradually return to normal diet. After the operation, patients should also drink more water to keep the bowel movement smooth, to avoid dry stools and affect the wound healing. In addition, after the operation, patients should also closely observe whether there is fever, abdominal pain, blood in the stool, blood pressure drop, etc. If there is any abnormality, the doctor should be informed in time.