Exposure to UV light from the sun or indoor tanning beds causes most melanoma cases, per NCI data.
Young women are still most likely to indoor-tan, even though their tanning rates declined after 2010, per the most recent data available.
Yes, but: Overdiagnosis could be contributing to the melanoma rate increase, according to the report.
A New England Journal of Medicine study found that routine skin exams have increased and pathologists now more often classify ambiguous lesions as melanoma.