Ascending colon polyp 0.3cm if after timely and active treatment, usually not serious, if the condition is allowed to develop without treatment may occur malignant changes possible. Ascending colon polyp is 0.3cm, the volume is small, mostly belongs to inflammatory polyps, hyperplastic polyps, but also does not exclude the possibility of tumor polyps. Ascending colon polyps of 0.3cm can be treated with enteroscopic resection, and the prognosis is usually good after treatment. The occurrence of colon polyps may be related to age, lifestyle habits, infection and heredity. Polyps of the ascending colon should be treated as early as possible and actively cooperate with the doctor’s treatment to avoid aggravation of the condition and malignant changes.