Weight loss surgeries are not performed on patients with advanced heart, kidney and lung diseases for whom general anesthesia is too risky. In addition, obesity surgeries should not be performed on patients with neurological and mental illnesses and those who cannot control their eating.

In addition, obesity surgeries are not recommended for patients with a body mass index below 35. Obesity surgeries are also not applied to those who are addicted to alcohol, drugs or substances. Weight loss surgery is also not suitable for sedentary patients.