Colon polyp 0.3cm is relatively not serious, generally belongs to benign lesions, but time may also be transformed into malignant tumors, so you need to timely pathological examination, regular follow-up. Colon polyps are divided into tumor polyps and non-tumor polyps, generally non-tumor polyp surface smooth, small volume, with movable, tumor polyp volume, accompanied by body wasting, limb weakness and other symptoms. 0.3cm colon polyp volume is small, generally belongs to the benign lesions. Patients should go to the hospital in time for examination, if there are suspicious lesions in the polyps, there may be a tendency of cancer, and need to carry out pathological examination. If the colon polyps are benign lesions, they can be removed by surgery under the microscope, and after the surgery, regular rechecks can be performed. Timely removal of colon polyps can effectively reduce the incidence of cancer, and the prognosis is relatively good.