Skin Cancer Across Skin Tones: What Hawaii Residents May Be Missing
Marsha Sakamaki • August 3, 2026
Short notes on health, aging, and prevention.
No noise. No selling. Ever.
A discussion about Australia’s unusually high skin cancer rate led me to a question I had never examined closely - Who exactly is considered fair-skinned?
The answer is less obvious than it sounds, especially in Hawaiʻi.
Some people of Japanese, Chinese or Korean ancestry have visibly light skin. Filipinos, Native Hawaiians, Pacific Islanders and people of mixed ancestry may have skin tones ranging from light to deeply pigmented. Yet visible color alone does not tell us exactly how much protection a person has from ultraviolet radiation, how readily that person burns or where a skin cancer might develop.
The common message that skin cancer mainly affects fair-skinned people is broadly grounded in risk, but it can also create a dangerous misunderstanding.
Lower risk does not mean no risk.
Why Australia has so much skin cancer
Australia has one of the highest melanoma rates in the world. The explanation is not that the entire country lies unusually close to the equator. Australia stretches across a broad range of latitudes, and most of its major population centers are farther from the equator than Hawaiʻi.
The more important explanation is the historical combination of:
- intense ultraviolet radiation
- a large population with northern European ancestry
- skin that burns relatively easily
- an outdoor and beach-oriented culture
- repeated sun exposure and sunburn beginning in childhood
Ultraviolet radiation can damage DNA in skin cells, creating mutations that may eventually lead to cancer. Cancer Council Australia estimates that the great majority of Australian skin cancers are caused by UV exposure.
Australia therefore represents a striking mismatch between environment and inherited pigmentation. Many European settlers and their descendants had skin adapted to regions with substantially weaker ultraviolet radiation.
Aboriginal Australians, whose natural pigmentation developed in that high-UV environment over many generations, generally have much lower melanoma rates. But darker pigmentation provides protection, not immunity.
What does “fair-skinned” actually mean?
In ordinary conversation, fair skin often means skin that looks pale or light.
In discussions about skin cancer, the term usually implies a cluster of characteristics that may include:
- skin that burns easily
- limited ability to tan
- freckling
- naturally light or red hair
- light-colored eyes
- relatively low levels of protective melanin
That is why ancestry and visible appearance do not always line up neatly.
An East Asian person may have light-looking skin but may not have the same burning pattern or melanoma risk as a very fair-skinned person of northern European ancestry. At the same time, the category “Asian” covers enormous variation. Japanese, Chinese, Korean, Filipino, Indian, Sri Lankan, Indonesian and other Asian populations should not be treated as though they have one skin type or one level of risk.
Mixed ancestry makes racial labels even less useful.
A more practical question may be:
How does this person’s skin respond to sunlight?
Does it burn quickly? Does it tan? Has the person had repeated blistering sunburns? Has the person lived for decades in a high-UV environment? Is there a personal or family history of skin cancer?
These questions tell us more than a broad racial category.
Hawaiʻi has intense UV too
Hawaiʻi is not protected from this problem simply because much of our population is Asian, Native Hawaiian, Pacific Islander or multiracial.
Honolulu experiences high to extreme ultraviolet levels, with much less seasonal relief than most of the continental United States. EPA materials have listed typical midday UV Index values for Honolulu at approximately 6 in winter and 11 to 12 in summer. A UV Index of 11 or higher is considered extreme.
A study of UV-attributable melanoma found that Hawaiʻi had the highest proportion of melanoma associated with UV radiation among the states examined. The particularly high incidence rate applied to non-Hispanic White residents, reminding us that statewide averages can conceal large differences among populations.
This is important in Hawaiʻi because two statements can be true at once:
- People with more natural pigmentation generally have lower rates of common sun-related skin cancers.
- Anyone can develop skin cancer, and the cancer may not appear where people have been taught to look.
Melanoma may look different in darker skin
In people with lighter skin, melanoma commonly appears on areas exposed to sunlight.
In people with darker skin, melanoma is more likely than it is in lighter-skinned populations to appear in areas receiving little or no sun, including:
- the soles of the feet
- the palms
- between the toes
- beneath or around fingernails and toenails
- inside the mouth
- other less visible areas
The most common melanoma subtype among people with dark skin is acral lentiginous melanoma. It develops on the palms, soles, fingers, toes or nail beds and is not necessarily driven by ordinary sun exposure in the same way as many other melanomas.
This creates a serious blind spot.
These illustrations are for general education. A spot cannot be diagnosed from appearance alone. New, changing, unusual, or nonhealing areas should be evaluated by a qualified healthcare professional.
Common warning signs include asymmetry, irregular borders, uneven color, growth, and change over time. In darker skin, suspicious areas may also appear on the palms, soles, between the toes, or beneath the nails.
A person may believe that a mark on the bottom of the foot cannot be skin cancer because it was never exposed to the sun. A dark streak beneath a nail may be mistaken for bruising. A lesion may go unnoticed between the toes.
Even clinicians may be less suspicious when a patient has darker skin.
Lower incidence can lead to later diagnosis
Melanoma is much less common among Asian, Black and many Pacific Islander populations than among non-Hispanic White populations. That lower incidence is reassuring at the population level.
It is not always reassuring for the individual patient.
When a disease is considered unlikely in a particular population, people may not check for it. Educational photographs may show the condition primarily on light skin. Health professionals may not immediately consider it. Diagnosis may therefore occur at a later stage.
The American Academy of Dermatology emphasizes that skin cancer can affect anyone and advises people with darker skin to examine areas including the palms, soles, scalp, nails and spaces between the toes.
This does not mean everyone should become frightened by every mole or dark mark. It means that persistent or changing abnormalities deserve attention, regardless of skin color.
What changes should be examined?
A medical evaluation may be warranted for:
- a new or changing mole
- a sore that does not heal
- a spot that changes in size, shape or color
- a growth that bleeds, crusts or repeatedly returns
- a dark line beneath a nail that is new or changing
- a patch on the palm or sole that grows or develops irregular borders
- a lesion that looks different from the person’s other spots
The familiar ABCDE warning signs remain useful:
- A: asymmetry
- B: irregular border
- C: uneven or changing color
- D: diameter, particularly when a lesion is growing
- E: evolving or changing over time
But not every melanoma follows the textbook pattern. A persistent change that looks unusual for that person is reason enough to ask a qualified healthcare professional about it.
Skin protection and vitamin D are separate questions
Concern about vitamin D sometimes complicates conversations about sun exposure.
The skin uses UVB radiation to produce vitamin D. But UVB is also capable of damaging skin cells. A person does not need to burn for cellular damage to occur, and intentional tanning is not a safe vitamin D strategy.
Vitamin D status can be evaluated and addressed through diet, supplements when appropriate and medical guidance. The need for vitamin D should not be used as a reason to pursue repeated unprotected exposure to intense midday sun.
The goal is not complete fear of sunlight. It is avoiding unnecessary UV damage while recognizing that people differ in their vulnerability.
The message Hawaiʻi needs
The conventional skin cancer message has often been aimed at a fair-skinned person who burns easily and develops a changing mole on a sun-exposed part of the body.
That person absolutely needs the warning.
But Hawaiʻi needs a wider version:
Skin cancer risk varies greatly across skin tones and ancestries, but no group has zero risk.
People with darker skin may be less likely to develop melanoma, yet the cancer may appear in unexpected places and may be recognized later. People with visibly light Asian skin may not fit neatly into either the “fair” or “dark” category. People of mixed ancestry cannot reliably judge their risk from racial labels alone.
Perhaps the better public-health message is not simply:
“Fair-skinned people should watch for skin cancer.”
It is:
Know how your own skin behaves, understand your individual risk and pay attention to changes anywhere on your body.
That message is both more accurate and more useful in Hawaiʻi.
This article is for general education and is not a substitute for individual medical evaluation. A new, changing or nonhealing skin lesion should be assessed by a qualified healthcare professional.
