Skin Cancer and Dark Skin: Risks and Prevention

Melanin provides natural photoprotection (SPF ~13), but does not confer immunity. Skin cancer occurs in all skin tones—and outcomes are often worse in darker skin due to delayed diagnosis.

Key Facts

• Lower incidence, higher mortality: Melanoma is 20–30× less common in Black vs. White populations, but 5-year survival is lower (66% vs. 94% US).
• Atypical sites: Acral lentiginous melanoma (palms, soles, nail beds) is most common subtype in dark skin. Also subungual, mucosal, plantar.
• Squamous cell carcinoma (SCC): Most common skin cancer in Black patients; often on legs, anogenital, chronic wounds/scars.
• Basal cell carcinoma (BCC): Rare but occurs; often pigmented (mimics melanoma).

Why Disparities?

• Lower suspicion by patients & providers.
• Lesions in hidden areas (soles, nails, mucosa).
• Less public awareness/education targeting skin of color.
• Dermatology workforce diversity gaps.

Prevention for All Skin Tones

• Sun protection: Broad-spectrum SPF 30+ daily; reapply. UPF clothing, hats, shade.
• Monthly self-exam: Check palms, soles, nails, mouth, groin, scalp — use mirror/partner.
• Annual professional skin exam: Especially if high risk (family history, immunosuppression, prior radiation).
• ABCDE + "Ugly Duckling": Asymmetry, Border irregularity, Color variation, Diameter >6mm, Evolution — plus any lesion that looks different from others.

Special Considerations

• Vitamin D: Darker skin synthesizes less — consider supplementation (test levels).
• Sunscreen: Tinted/mineral formulations avoid white cast.

Skin cancer is preventable and treatable when caught early—regardless of skin color.