Skin & hair

Where Skin Cancer Actually Appears on Darker Skin

Save

Skin cancer is often thought of as a fair-skin problem, which is exactly why it gets missed in people with darker skin. When melanoma does occur, it favors the palms, soles, nail beds, and mouth rather than sun-exposed areas. This guide covers where to look, how the warning signs differ, why early detection matters most here, and what to do about a spot you can't explain.

Last updated: July 2026

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

Where does skin cancer appear on darker skin?

In people with darker skin, skin cancer most often shows up in places the sun barely touches: the palms of the hands, the soles of the feet, the skin under and around the nails, and the moist tissue inside the mouth and other mucous membranes. The type of melanoma that favors these sites is called acral lentiginous melanoma, and it is the most common form of melanoma diagnosed in Black, Hispanic, and Asian patients 1.

This matters because it upends the usual advice. Sun-exposed skin — the face, ears, and arms — is still worth watching, but the higher-yield places to check on darker skin are the ones people rarely think to look at. And the premise behind the question deserves a direct answer: yes, can black people get skin cancer is a real question with a clear answer, because skin cancer occurs in every skin tone. It is less common in darker skin, but that lower frequency has fed a myth that it does not happen at all — a myth that costs time.

The hidden sites: palms, soles, nails, and mouth

Acral melanoma in skin of color concentrates in a short list of easily overlooked places, and knowing them turns a vague worry into a concrete self-check. On the palms and soles, the thing to watch is a new or changing dark spot or patch — especially one that is enlarging, has an irregular shape, or contains more than one shade of brown or black. On the feet, the sole and the spaces between the toes are common and easy to ignore 1.

The nails have their own signal. A dark band running the length of a nail can be harmless, but a band that is new, that is widening, that appears on a single nail, or where the pigment spreads onto the surrounding skin at the base of the nail is a pattern that warrants a clinician's look — not a self-diagnosis. The same goes for a dark spot inside the mouth or on the gums. None of these can be judged safe by eye. The evolving warning signs that catch melanoma elsewhere — asymmetry, irregular borders, more than one color, growth, and change over time — apply here too, adapted to sites most people never examine 2. It helps to make the check specific rather than general: turn the hands over and look at each palm, sit down and look at the bottom of each foot and between every toe, and glance at each nail for a band that was not there before. That is thirty seconds most people never spend.

Why skin cancer is often caught later on darker skin

Two things combine to make skin cancer on darker skin more likely to be found late. First, the tumors sit in hidden places — the sole of a foot, under a nail — that neither patients nor clinicians routinely inspect. Second, the widespread belief that skin cancer is a fair-skin disease lowers everyone's suspicion, so a changing spot is more often dismissed or misread as a callus, a wart, a bruise, or a fungal nail. Delay is the real danger here, not a difference in the cancer itself.

Why delay matters is not mysterious. Melanoma outlook is tied closely to stage: a melanoma found while still confined to the skin has a high five-year relative survival, and survival falls once it has spread to lymph nodes and falls further with distant spread 3. A tumor found late has usually had time to grow deeper. That single relationship — earlier is better, by a wide margin — is the entire reason this page emphasizes the hidden sites. The cancer is not more aggressive because of skin tone; it is more dangerous when it is found later, and it is found later when no one is looking. This is not about blame or fear; it is about closing an information gap. Once you know the hidden sites, and know that skin tone makes no one immune, the disadvantage of a late-noticed tumor largely disappears — because the noticing is the part within reach.

Do the warning signs look different on darker skin?

The warning signs are the same in principle but can look different on the surface. The ABCDE features — asymmetry, an irregular border, more than one color, a diameter larger than a pencil eraser, and evolution or change over time — remain the framework for spotting melanoma on any skin tone 2. What changes is the palette: on darker skin a melanoma may read as a dark brown, blue-black, or nearly black patch rather than the pink or red often pictured, and redness is a less reliable cue.

Because color contrast can be subtler, change over time carries even more weight. A spot that is growing, darkening, changing shape, bleeding, or failing to heal deserves attention regardless of how it started. This is where photographs earn their keep: a clear image taken today and compared in a month makes evolution visible that memory would miss. One more practical lens helps here: because a melanoma on darker skin may be a single dark patch sitting among other perfectly normal dark spots, the ugly-duckling idea — the spot that stands out as different from all your others — is useful alongside the ABCDE features 2. But the criteria describe which spots to show a clinician; they do not let anyone, including this page, declare a particular spot safe. That verdict needs an in-person exam and, where indicated, a biopsy.

Not every dark spot is skin cancer

Darker skin is, by design, rich in pigment, and it commonly carries benign dark spots — freckles, moles, patches of post-inflammatory darkening after acne or injury, and conditions such as melasma, a blotchy brown facial pigmentation that particularly favors people with darker skin types 4. Most pigmented spots are not cancer, and the goal of knowing the warning signs is not to fear every mark. Post-inflammatory hyperpigmentation in particular is very common on darker skin — a flat dark mark left behind after a pimple, a scratch, or a rash — and it usually fades slowly over months. It is not cancer, but because it and a worrisome spot can both present simply as a dark mark, the safe habit is to track whatever is genuinely new or changing rather than to sort them by eye.

The catch is that benign and worrisome spots cannot be reliably told apart by appearance alone — which is why the rule is the same either way: notice what is changing, photograph it, and let a clinician sort it out rather than trying to reason yourself into or out of alarm. A stable spot that has looked the same for years is different from one that is new or evolving, and it is change that earns a closer look. What this page will not do is tell you a specific spot is harmless; that reassurance, when it is warranted, is something an examination provides and a description cannot.

Skin cancer on sun-exposed skin still happens

Acral sites get the emphasis on darker skin, but sun-exposed skin cancers occur too, and sun protection still matters. Squamous cell carcinoma and basal cell carcinoma appear on darker skin as well — often on the head and neck, the lower legs, and in areas of old scars, burns, or long-standing inflammation, sometimes as a firm growth or a sore that will not heal. Skin cancer on the face, particularly on the nose, ears, and lips, remains worth watching in every skin tone.

Ultraviolet light is a modifiable risk factor for skin cancer across the board, and avoiding excess UV — from the sun, sunlamps, and tanning beds — lowers that risk 5. Melanin offers some natural protection, which is part of why sun-driven skin cancers are less common in darker skin, but it is partial, not complete: sunburn, photoaging, and UV-related cancers still occur. Sun protection is worthwhile for its own sake, even though it does nothing to prevent the acral melanomas that are not caused by the sun.

What to do: checking your skin, and getting seen

The practical routine on darker skin adds the hidden sites to a normal skin check: look at the palms and soles, between the toes, the nails on hands and feet, and — with a mirror or a helper — the scalp, the back, and the soles you cannot easily see. Photograph anything new or changing in good light with something for scale, and repeat the photo in a few weeks so change is visible. Bring the images and the spot itself to a clinician if anything is growing, changing, or not healing.

A note on screening. The US Preventive Services Task Force concluded that there is not enough evidence to recommend for or against routine whole-body skin screening of adults who have no symptoms — but that verdict is about symptom-free screening, and it explicitly does not apply to getting a suspicious or changing spot evaluated 6. So the guidance about who should get regular skin checks is a personal-risk conversation, while a spot that worries you is simply a reason to be seen. Where possible, a skin-of-color dermatologist — or any clinician experienced in diagnosing pigmented skin — is well worth seeking, and free skin cancer screening events can be one route in. The verdict on any individual lesion, though, always belongs to an in-person exam and a biopsy, never to a search result.

How it's diagnosed and treated

When a spot on a palm, sole, or nail looks concerning, the answer is not more waiting but a biopsy: a clinician samples the lesion so a pathologist can confirm whether it is melanoma and, if so, how deep it goes. Acral melanomas are diagnosed and staged by the same system used for melanoma elsewhere, and treatment follows the stage — surgery to remove the tumor with a margin, assessment of the lymph nodes for thicker tumors, and drug therapy for advanced disease 1. A concerning dark nail streak may be biopsied at the nail matrix, the growth zone at the base of the nail. Acral melanomas can also be amelanotic — lacking the expected dark pigment and looking pink, red, or skin-colored — which makes them even easier to overlook, so a persistent, growing, or non-healing spot on a palm or sole deserves the same scrutiny as a dark one, color notwithstanding 1.

The reason to act on a changing acral spot early is the same reason that runs through this whole page: outcome tracks with how early the melanoma is found, and the sites involved here are the ones most likely to be ignored until late. None of the description on this page can substitute for that biopsy. What it can do is lower the odds that a changing spot on a sole or a nail gets brushed off as a callus or a bruise — and raise the odds that it gets looked at while it is still thin.

Common questions

Yes. Skin cancer occurs in every skin tone. It is less common in darker skin, but it is more likely to be found late — partly because of the myth that it only affects fair skin. When melanoma does occur on darker skin, it tends to appear on the palms, soles, and nails, so any changing spot in those places deserves evaluation.

Often a dark brown to black spot, patch, or streak rather than the pink or red usually pictured, and commonly on a palm, sole, nail bed, or inside the mouth. The ABCDE change signs still apply. Because color contrast can be subtle on darker skin, growth or change over time matters most. Only a biopsy can confirm it.

Not necessarily — many nail bands are harmless. Features that warrant a clinician's look include a band that is new, appears on a single nail, is widening, or where the pigment spreads onto the skin at the base of the nail. It cannot be judged by eye, so the step is to photograph it and have it examined.

Yes. Melanin gives partial UV protection, not full: sunburn, photoaging, and UV-related skin cancers still happen, and reducing UV lowers skin-cancer risk. Sunscreen will not prevent acral melanomas on the palms and soles, which are not sun-driven, but it protects against the sun-exposed skin cancers that do occur on darker skin.

Add the spots that are easy to skip: the palms, the soles, between the toes, the fingernails and toenails, the scalp, and the mouth, alongside the usual sun-exposed areas. Use a mirror or ask someone for the back and the soles you cannot see, and photograph anything new or changing so you can compare it later.

Related

Say it back

How would you explain this to someone you love?

Two or three sentences, just as you’d say it. Gale reflects back what you focused on — a mirror, not a quiz.

Talk to a clinician

Gale can help you find a clinician in your state and request a visit.

Find care →

When a spot on darker skin needs a closer look

  • —A new, changing, or enlarging dark spot on the palm, sole, or between the toes
  • —A new, single, or widening dark streak under a fingernail or toenail, or pigment spreading onto the skin at the base of the nail
  • —A new dark spot inside the mouth, on the gums, or on other mucous membranes
  • —A firm growth or a sore that keeps growing or won't heal, including within an old scar or an area of chronic inflammation

This article explains where skin cancer tends to appear on darker skin and which changes warrant evaluation. It cannot diagnose or clear a spot on your skin — only an in-person clinician and, where needed, a biopsy can. Use it to decide what to have looked at, not to rule anything in or out.

References

  1. 1.National Cancer Institute (PDQ Adult Treatment Editorial Board) (2025). Melanoma Treatment (PDQ®)–Health Professional Version. NIH / National Cancer Institute. link ✓NCI PDQ that acral lentiginous melanoma is a melanoma subtype occurring on the palms, soles, nail beds, and mucous membranes and is the most common melanoma subtype in people with darker skin, and that melanoma is diagnosed by biopsy, staged, and treated by excision with lymph-node assessment and drug therapy for advanced disease.
  2. 2.Tsao H, Olazagasti JM, Cordoro KM, et al. (2015). Early detection of melanoma: reviewing the ABCDEs. Journal of the American Academy of Dermatology. PMID 25698455 ✓The ABCDE criteria (Asymmetry, Border irregularity, Color variegation, Diameter over 6 mm, Evolving) as the warning-sign features used to detect melanoma on any skin tone.
  3. 3.National Cancer Institute, Surveillance, Epidemiology, and End Results (SEER) Program (2025). Cancer Stat Facts: Melanoma of the Skin. NIH / National Cancer Institute (SEER). linkSEER melanoma statistics: five-year relative survival is high for localized disease and progressively lower once melanoma has spread to regional nodes or distant sites, underscoring the value of early detection.
  4. 4.Sheth VM, Pandya AG (2011). Melasma: a comprehensive update: part I. Journal of the American Academy of Dermatology. PMID 21920241 ✓Review that melasma is a common benign facial hyperpigmentation that particularly affects people with darker skin types, driven by genetic predisposition, hormones, and UV/visible-light exposure.
  5. 5.National Cancer Institute (PDQ Screening and Prevention Editorial Board) (2025). Skin Cancer Prevention (PDQ®)–Health Professional Version. NIH / National Cancer Institute. link ✓NCI PDQ that avoiding UV radiation from the sun, sunlamps, and tanning beds is a modifiable way to reduce skin-cancer risk.
  6. 6.US Preventive Services Task Force (2023). Skin Cancer: Screening. US Preventive Services Task Force. link ✓USPSTF 2023 (Grade I) that evidence is insufficient to assess routine clinician whole-body visual skin screening in asymptomatic adults; the recommendation does not address evaluation of a concerning or symptomatic lesion.

6 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — citations link their sources. Editorial policy

← Back to the health library