Young men are 55% more likely to die of melanoma than young women, according to a recent study that followed more than 25,000 white adolescents and young adults with melanoma. About 95% of skin melanomas occur in non-Hispanic whites. The disparity between the sexes held across melanomas matched for thickness, suggesting a biological basis. But even so, young men can reduce their risk with sun protection and skin checks. Another large study suggested that using sunscreen regularly could cut the incidence of melanoma by half. In addition, men are less likely to get skin checks and young adults are less likely to go to doctors, period. Dermatologists recommend professional skin exams for people with changing moles or 'ugly duckling' moles, which don't match the others. Ugly duckling moles tend to grow up, can be small and uniform in color, and may bleed.