Does Too Much Sun Really Cause Melanoma?
August 05, 2008
Sam Shuster, a consultant dermatologist at Norfolk and Norwich University Hospital, argues that sun exposure is not the major cause of malignant melanoma.
Melanoma is related more to ethnicity, and in 75 percent of cases it occurs on relatively unexposed sites, especially on the feet of Africans. Melanoma occurrence actually decreases with greater sun exposure and can be increased by sunscreens.
There is also good evidence that the reported increase in melanoma incidence is an caused by the incorrect classification of benign naevi as malignant melanomas, which would explain why melanoma mortality has changed little despite the great increase in supposed incidence.