Generally, bariatric surgery, including sleeve gastrectomy, is not preferred for individuals under 18 years of age. However, in rare and exceptional cases, surgery may be considered for children who, despite long-term supervision by a multidisciplinary team of specialists (child psychiatrist, nutritionist, endocrinologist, and child development specialist), cannot achieve sufficient weight loss and experience serious metabolic problems due to severe obesity at an early age. This situation applies to a very limited patient group.

While the upper age limit is generally accepted as 65, sleeve gastrectomy can also be performed in older patients who are in good general health, suitable for surgery, and have a long life expectancy.