Question: how serious is nail melanoma?
Answer: About subungual melanoma Subungual melanoma is uncommon. It accounts for only 0.7 percent to 3.5 percent of all malignant melanomas worldwide. This form of melanoma occurs in all racial groups, with 30 to 40 percent of cases appearing in non-white people. Subungual melanoma is rare, but it is deadly if left untreated.