Mind the Gap atlas
How conditions actually present on Black skin.
Medical textbooks almost exclusively depict conditions on light skin. That omission has delayed real diagnoses — jaundice in newborns, meningitis rashes, Lyme bullseyes, Stevens-Johnson, Kawasaki, eczema, and many more present differently on Black skin. This atlas is the written clinical reference we wish had existed: we describe the presentation, tell you what to look for, and link out to open-access imagery from peer-reviewed and respected sources (we don't host clinical photographs here).
Body system
Acne and acne keloidalis nuchae on Black skin
Key cue: Dark marks after pimples often concern patients more than active acne. AKN (firm bumps on posterior scalp) is a distinct Black-skin entity needing dermatology care.
Read the atlas pageCentral centrifugal cicatricial alopecia (CCCA) on Black skin
Key cue: Slowly expanding hair loss from the crown outward, with smooth shiny scalp. Primarily affects Black women; early dermatology care preserves follicles.
Read the atlas pageEczema (atopic dermatitis) on Black skin
Key cue: Eczema on Black skin reads grey, violaceous, or darker-than-surrounding rather than red. Follicular-bump pattern and lichenification are common. The post-flare dark marks often worry families most.
Read the atlas pageHidradenitis suppurativa on Black skin
Key cue: Recurring painful deep bumps in armpits, groin, buttocks, or under breasts — not just 'boils' or 'acne'. Black women have 2-3× the severity and average 7-10 years to diagnosis.
Read the atlas pageMelasma on Black skin
Key cue: Symmetric dark-brown to slate-grey patches on forehead, cheeks, upper lip. Dermal pigment is less responsive to topical lighteners; daily SPF with iron oxide is the foundation.
Read the atlas pagePityriasis rosea on Black skin
Key cue: Single 'herald patch' followed in 1-2 weeks by many smaller oval lesions in a Christmas-tree distribution on the trunk. On Black skin, lesions are hyperpigmented or violaceous rather than pink-salmon.
Read the atlas pagePsoriasis on Black skin
Key cue: Plaques appear violaceous or hyperpigmented with thicker silvery-grey scale. 'Salmon pink' descriptions miss Black-skin psoriasis — use the sharp border + scale + distribution instead.
Read the atlas pageRosacea on Black skin
Key cue: Rosacea is under-diagnosed in Black patients by up to 75%. Look for burning/stinging, centrofacial papules/pustules, and flushing that reads as darkening rather than red.
Read the atlas pageSeborrheic dermatitis on Black skin
Key cue: Ring-shaped (annular/petaloid) hypopigmented patches with fine scale on the face are a Black-skin variant distinct from the flaky-scalp textbook picture.
Read the atlas pageTinea versicolor (pityriasis versicolor) on Black skin
Key cue: Oval hypo- (sometimes hyper-) pigmented patches with fine scale on upper trunk, shoulders, neck. KOH prep ('spaghetti and meatballs') confirms and rules out vitiligo.
Read the atlas pageVitiligo on Black skin
Key cue: Chalk-white patches with sharp borders, usually symmetric. Contrast against Black skin is high; psychosocial impact is significant. Treatment works — early dermatology referral matters.
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