Alcohol and melanoma

The association between alcohol and melanoma was strongest for parts of the body that typically receive less sun exposure. Cho said that compared with nondrinkers, those who consumed 20 grams or more of alcohol per day were 2 percent more likely to be diagnosed with melanomas of the head, neck, or extremities, but 73 percent more likely to be diagnosed with melanomas of the trunk. She said this finding was novel and further research would be required to explain the results.

https://www.eurekalert.org/pub_releases/2016-12/aafc-aia112916.php