Appropriate Surveillance Interval after Colonoscopic Polypectomy in Patients Younger than 50 Years.

The postpolypectomy surveillance interval can be extended up to 5 years in patients aged 30-44 years with HRA, similar to those aged ≥ 50 years with LRA. However, the interval in patients aged 45-49 years with HRA and LRA should be 3 and 5 years, respectively, similar to those aged ≥ 50 years.