Study finds weight-loss surgery cuts cancer risk

Morbidly obese patients who undergo weight-loss surgery greatly reduce their risk of cancer, according to a study providing fresh evidence of health benefits from these increasingly common operations.

Researchers from McGill University in Montreal found that the people who underwent bariatric surgery saw reductions in particular in the risk for breast and colon cancer . Many people see dramatic weight loss after such surgery.

People who are deemed morbidly obese typically are at least 100 pounds (45 kg) overweight. The researchers tracked 1,035 such patients who had bariatric surgery for five years. They also monitored 5,746 patients who matched the surgery group in age, sex and weight but did not have this surgery.

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