A Prospective, Multicenter, Randomized Controlled Study Comparing Cold Snare Polypectomy Under Image-Enhanced Endoscopy (NBI/LCI/BLI) versus White Light Endoscopy for Colorectal Polyps Less Than 1 cm in Diameter

INTERVENTION: Group A:Image‐enhanced endoscopic‐guided cold snare polypectomy;Group B:White light endoscopy‐guided cold snare polypectomy; CONDITION: Colorectal polyps less than 1 cm in diameter PRIMARY OUTCOME: Whether secondary cold snare resection was performed during the procedure;Postoperative local polyp recurrence;Intraoperative polyp residual condition; SECONDARY OUTCOME: Postoperative polyp histology results; INCLUSION CRITERIA: 1.Patients diagnosed with colorectal polyps less than 1 cm in diameter under endoscopy, including sessile and pedunculated polyps; 2.Age less than 80 years old, no restriction on gender; 3.Hospitalized patients receiving endoscopic cold snare polypectomy in designated cooperative hospitals; 4.Voluntarily sign the informed consent form and cooperate with operation and postoperative follow‐up.