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 pageAnaphylaxis on Black skin
Key cue: Don't wait for a 'red flushed' look. Hives can be violaceous or skin-coloured raised welts; lip/tongue swelling is pigment-independent and is the key sign.
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 pageChickenpox (varicella) on Black skin
Key cue: Crops of vesicles in different stages at once, 'dewdrops on a rose petal'. Look for the fluid-filled blister stage; colour of the base is less reliable on Black skin.
Read the atlas pageCyanosis on Black skin
Key cue: Skin cyanosis is unreliable on Black skin. Check the lips, under the tongue, the nail beds, the conjunctivae, and trust an arterial blood gas over pulse oximetry.
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 pageErythema migrans (Lyme disease) on Black skin
Key cue: Don't look for a 'bright red bullseye' on Black skin. Look for an expanding patch that's darker, duskier, or bruise-coloured.
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 pageKawasaki disease on Black skin
Key cue: Fever ≥ 5 days in a child + red/cracked lips + 'strawberry tongue' + peeling fingertips, colour changes are subtler on Black skin but the mucosal and conjunctival findings are not.
Read the atlas pageLupus rash (malar + discoid) on Black skin
Key cue: Malar rash on Black skin often looks violaceous or hyperpigmented, not 'butterfly red'. Discoid lesions cause permanent dyspigmentation and scarring alopecia, treat early.
Read the atlas pageMeasles on Black skin
Key cue: Koplik spots (tiny white spots inside the cheek) + high fever + cough/coryza/conjunctivitis, the rash can read as hyperpigmented rather than red.
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 pageMeningitis rash on Black skin
Key cue: Non-blanching pinpoint spots. Press a glass against the rash, if the colour stays, treat as meningococcal disease.
Read the atlas pageNecrotizing fasciitis on Black skin
Key cue: Pain out of proportion to skin findings is the single most important cue, colour changes are subtle on Black skin. Tenseness, crepitus, and rapid progression override visual reassurance.
Read the atlas pageNeonatal jaundice on Black skin
Key cue: Visual assessment is unreliable on Black newborns. Check the sclerae and hard palate, and ask for transcutaneous bilirubin measurement at every well-baby visit in the first week.
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 pageSarcoidosis (cutaneous) on Black skin
Key cue: Violaceous or hyperpigmented papules and plaques on face, scalp, old scars, or tattoos, 'scar sarcoidosis' is particularly common in Black patients.
Read the atlas pageScarlet fever on Black skin
Key cue: Fine sandpaper-feel rash, strawberry tongue, flushed cheeks (subtle on Black skin), peeling in groin/armpits in week two.
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 pageShingles (herpes zoster) on Black skin
Key cue: Pain and tingling in a single-side, stripe-like pattern (dermatome) that precedes grouped vesicles by 1-3 days. Don't wait for a 'red rash', start antivirals on pain + vesicles.
Read the atlas pageStevens-Johnson syndrome / toxic epidermal necrolysis on Black skin
Key cue: Painful rash + mucosal sloughing (mouth, eyes, genitals) after a new medication. Pain disproportionate to visible lesions is a warning.
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.
Read the atlas page