Does weight loss surgery affect colorectal cancer risk?

Although colorectal cancer is associated with obesity, it is unclear if weight loss surgery impacts the incidence of these tumors. Results from a new study published in the International Journal of Cancer suggest that the risk of colon cancer may be increased in individuals who have undergone such surgery.

In the population-based study of 502,772 individuals with obesity from five Nordic countries, patients who underwent weight loss surgery had a higher risk of colon cancer than the general population.

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