Whether intestinal polyps 0.3cm need to be resected is related to whether they are multiple and whether they are accompanied by other symptoms, etc. Non-adenomatous polyps can be temporarily observed, and adenomatous polyps need to be resected. Intestinal polyps usually have no obvious symptoms when they are small, and can cause intestinal bleeding, abdominal pain, cancer, etc. When they are large, they can cause diarrhea, intussusception, intestinal obstruction and other more serious symptoms. 1. Non-adenomatous polyps: the morphology and type of polyps can be initially clarified through enteroscopy and endoscopic typing, and generally have less tendency to malignant transformation. For non-adenomatous polyps <0.5cm, they can be temporarily observed and regularly rechecked. 2. 2. Adenomatous polyps: Adenomatous polyps, regardless of their size, are recommended to undergo polypectomy as early as possible due to the possibility of malignant changes, and the colonoscopy should be repeated six months later. If intestinal polyps appear in the examination, it is recommended to consult the doctor in time, under the guidance of the doctor to clarify the cause of the disease, to determine whether the need for surgical resection, so as to avoid delaying the condition.