@harry It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity. However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes. To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study. The SOS study enrolled men with a body mass index (BMI) ≥ 34 kg/m2, and women with a BMI ≥ 38 kg/m2 who were 37 to 60 years old, between 1987 to 2001. The current study outcome — cancer incidence in patients with obesity and type 2 diabetes — was not a prespecified outcome