The early signs of melanoma are almost always visual rather than physical: a new spot on your skin, or an existing mole that changes in size, shape, colour, or border over weeks to months.
Most early melanomas do not hurt, itch, or bleed at first, so a change you can see matters far more than a symptom you can feel.
TL;DR
- New spot or changing mole → check it against the ABCDE rule
- One mole that looks nothing like your others → the ugly duckling sign, book an assessment
- Dark streak under a nail, or a sore that has not healed in four weeks → not normal, get it examined
- Early melanoma is often small, flat, and painless → do not wait for it to hurt
- A photo comparison is not a diagnosis → only a clinical exam, and sometimes a biopsy, can confirm what a spot is
At Pinkal Medical Aesthetics, a nurse practitioner-led clinic in London, Ontario founded by Pinkal Gandhi, we focus on assessing skin changes carefully and recognising when a lesion needs further investigation rather than reassurance.
What Is Melanoma, in Plain Language?
Melanoma is a cancer that begins in melanocytes, the cells that produce your skin pigment. Because those cells sit in the skin's surface layers, melanoma is one of the few cancers you can often see before it causes any symptoms.
Two facts explain why timing matters so much:
- Melanoma usually spreads sideways across the skin before it grows downward into deeper tissue
- That downward depth, measured after a biopsy, is the strongest single predictor of outcome
Published Canadian cancer statistics estimate that roughly 9,000 to 10,000 Canadians are diagnosed with melanoma each year, and it remains one of the more commonly diagnosed cancers in adults under 50.
Reported five-year survival for melanoma still confined to the skin is generally above 90 percent in Canadian and American registry data, and reported survival falls considerably once the disease reaches lymph nodes or distant organs.
What Are the Early Signs of Melanoma You Can Actually See?
Change is the most reliable early sign. A mole that has looked identical for twenty years is far less concerning than a spot that has visibly shifted in the past three months.
Watch for these seven changes:
- A new mole or pigmented spot, particularly one appearing after age 40
- A mole growing in size, especially spreading wider rather than upward
- More than one colour in one spot: brown with black, grey, red, blue, or white areas
- An irregular, blurred, or notched border that fades into the surrounding skin
- A firm, raised bump that appears quickly and keeps growing over weeks
- Itching, tenderness, crusting, or bleeding with no injury to explain it
- A sore or scab that has not healed within four weeks
Pro Tip: Your memory is the weakest part of self-checking. Photograph any spot you are unsure about with a coin or ruler beside it for scale, then re-photograph from the same distance in eight to twelve weeks. Documented change beats recollection every time. This same principle underlies professional mole mapping.
What Does Melanoma Look Like in Early Stages?
In early stages melanoma usually looks like an unusual mole rather than a wound: asymmetrical, unevenly coloured, and slowly changing. Two checks cover most cases, and each has blind spots the other fills.
How Do You Use the ABCDE Rule Correctly?
The ABCDE rule gives you five checkpoints, and any single one is reason enough for a professional look.
Three limits worth knowing:
- E is the most important letter. A lesion can pass A through D and still be melanoma if it is changing.
- Size is a weak filter. Melanomas are sometimes diagnosed below 6 mm.
- It performs poorly for some subtypes, especially nodular melanoma and melanoma under the nails.
What Is the Ugly Duckling Sign?
The ugly duckling sign says your moles usually follow a family resemblance, so the one that breaks the pattern deserves attention. For people with many moles, this often outperforms ABCDE.
How to apply it:
- Look at a whole area at once, such as your back or one thigh, rather than mole by mole
- Identify your dominant pattern: mostly small and light, or mostly larger and darker
- Find the outlier: darker, larger, more raised, or differently shaped than its neighbours
- Treat that outlier as the one to have assessed
What Can Early Skin Cancer Photos Tell You, and What Can They Not?
Photos online are useful for learning patterns and useless for confirming your own spot. It is worth being clear about why.
What photos do well:
- Teach you what asymmetry, uneven colour, and irregular borders look like
- Show you subtypes you would not otherwise recognise, such as nail or nodular melanoma
- Motivate a booking when something on your skin resembles what you see
Where photos fail:
- Published images skew toward advanced, obvious examples, so a subtle early lesion can look reassuring by comparison
- Lighting, camera quality, and screen calibration change apparent colour significantly
- A photo shows no depth, no texture under magnification, and no history of change
- Your spot may be one of the many benign lesions that mimic melanoma, a question covered in Is My Mole Cancerous?; only an exam can sort out which one you have
The practical rule: use photos to decide whether to book, never to decide whether to wait.
Normal Mole or Early Melanoma: How Do They Compare?
Most moles are harmless, and this comparison helps you separate concern from panic. It supports a decision about whether to book, and it does not replace an examination.
Where Does Melanoma Appear, and What Does It Look Like There?
Melanoma can appear anywhere, including skin that rarely sees sunlight, so location changes what you look for.
Face, Nose, Cheeks, and Lips
On the face, watch for a flat, slowly spreading patch of uneven brown or grey pigment, most often on chronically sun-exposed areas in older adults. A persistent dark spot on the lip, or a non-healing sore at the lip border, also warrants review.
Ears, Scalp, and Neck
These sites are commonly missed because you cannot see them unaided. Ask someone to part your hair in sections, and check behind and inside the outer ear.
Chest, Back, Abdomen, and Legs
The back is the most common melanoma site in men, and the lower legs in women. Both are areas where moles cluster, so the ugly duckling approach works well there.
Hands, Fingers, and Under the Nails
Look for a dark brown or black band running lengthwise under a nail, most often a thumb or big toe. Concerning features include a band that widens, uneven colour within the band, and pigment spreading onto the surrounding skin or cuticle, sometimes called Hutchinson's sign.
- A trauma-related nail bruise usually grows out with the nail over months
- A pigmented band that persists or widens with no injury needs assessment
Feet, Soles, and Toenails
Check the soles, heels, and between the toes. Melanoma on the palms, soles, and nail units occurs across all skin tones and is proportionally more common in people with darker skin.
Eyes
Ocular melanoma is uncommon and does not appear on the skin. Report new floaters, flashes, a growing dark spot on the iris, a change in pupil shape, or blurred vision to an optometrist or ophthalmologist rather than a skin clinic.
Areas People Forget to Check
- Scalp and hairline
- Behind and inside the ears
- Between fingers and toes
- Soles and under the nails
- Buttocks, groin, and genital skin
- Under the breasts and within skin folds
What Should You Look For on Black and Brown Skin?
On darker skin tones, melanoma appears more often on the palms, soles, and nail beds than on sun-exposed areas, and redness is not a useful signal. Research consistently reports later-stage diagnosis in Black patients, which reflects a detection and awareness gap rather than anything inevitable.
What to check instead:
- Dark patches or lines on the palms and soles
- Pigmented bands under fingernails or toenails
- New or changing spots in the mouth, on the genitals, or around the anus
- Firm, growing, or ulcerated bumps that do not resolve
- Any spot whose colour deepens or texture changes
Pro Tip: If you have deeper skin, run your self-check "hands, feet, and nails first" instead of starting at the face and shoulders. That one sequencing change puts your attention on the sites where melanoma is statistically most likely to appear on your skin.
Which Melanoma Subtypes Break the Usual Rules?
Two subtypes routinely evade the standard checklist, and knowing them prevents false reassurance.
- Superficial spreading melanoma: the most common form, usually flat and spreading outward, and broadly the type ABCDE was designed to catch
- Nodular melanoma: grows as a firm raised bump, can be symmetrical and a single uniform colour, sometimes red or skin-toned rather than dark, and grows downward faster than other types
- Subungual and acral melanoma: appears under nails or on palms and soles, and is often mistaken for a bruise, fungal nail, or callus
- Lentigo maligna: a slow, flat, expanding brown or grey patch on sun-damaged skin, frequently dismissed as an age spot
The practical rule: any lesion that is new, firm, raised, and growing over a few weeks deserves prompt assessment even if it looks tidy and passes ABCDE.
Not Every Skin Cancer Is Melanoma: What Else Should You Notice?
Basal cell and squamous cell carcinomas are far more common than melanoma, and they often present as a wound that will not heal rather than a dark mole.
- Basal cell carcinoma: a pearly or translucent bump, a pink patch, or a sore that scabs, partly heals, then opens again
- Squamous cell carcinoma: a rough, scaly, red patch, a firm nodule, or a crusted sore, often on the face, ears, scalp, or backs of the hands
- Actinic keratosis: rough, sandpaper-like patches that can precede squamous cell carcinoma
Both are usually highly treatable when addressed early, and both should be assessed rather than watched indefinitely.
How Long Does It Take for Melanoma to Show Symptoms?
Visible change usually arrives well before any physical symptom, and the timeline depends on subtype. Waiting for pain is a poor strategy.
- Superficial spreading melanoma: typically changes gradually over many months to a few years
- Nodular melanoma: can appear and grow noticeably within weeks to a few months
- Itching, tenderness, or bleeding: tend to appear later in the process, not first
A reasonable rule for home monitoring: if a lesion has visibly changed over eight to twelve weeks, stop watching and have it examined.
Who Is at Higher Risk of Melanoma?
Risk factors do not cause melanoma by themselves, but they should raise how often you check and lower your threshold for booking.
Higher-risk features include:
- Fair skin, light eyes, red or blond hair, freckling, skin that burns easily
- A history of blistering sunburns, especially in childhood
- Any tanning bed use, with risk generally higher the earlier and more often it was used
- More than 50 moles, or several atypical or irregular moles
- A personal or family history of melanoma or other skin cancer
- Immunosuppression, including after an organ transplant
- Outdoor work or high cumulative sun exposure, which is relevant through southwestern Ontario summers
Melanoma also occurs in people with none of these features, which is why visible change matters more than risk category. A baseline skin cancer screening can help establish what's normal for you regardless of risk category.
How Do You Check Your Own Skin in 10 Minutes?
A structured head-to-toe sequence, done every one to three months in good light, catches far more than occasional glances in the mirror.
- Face, lips, ears, and inside the outer ear
- Scalp, parting hair in sections or asking someone for help
- Neck, chest, and abdomen
- Both arms, including underarms, palms, between fingers, and nails
- Back, buttocks, and backs of the legs using a full-length mirror plus a hand mirror
- Fronts of the legs, then feet, soles, between toes, and toenails
- Photograph anything uncertain, dated, with an object for scale
Pro Tip: Remove nail polish before checking your nails. Polish hides exactly the pigmented bands that matter most under fingernails and toenails.
On mole-scanning apps: these may prompt you to seek care, but published evaluations report inconsistent accuracy. Treat any app result as a reason to book, never as clearance to wait.
When Is Self-Checking Not Enough?
Self-checking finds candidates, and a clinical examination decides what they are. Book an in-person assessment if you notice any of the following, and do not wait for symptoms to develop.
Book promptly for:
- A spot that has changed in size, shape, colour, or elevation
- A mole that looks unlike all your others
- A sore, scab, or ulcer that has not healed in four weeks
- Bleeding, oozing, or crusting from a mole without injury
- A pigmented band under a nail with no history of trauma
- A firm bump that keeps growing over weeks
- Persistent itch or tenderness in one specific lesion
- Any spot you keep returning to check, even if you cannot say why
What Happens at a Skin Assessment?
An assessment is a short, structured conversation and examination that ends with a clear plan rather than a vague "keep an eye on it."
- A history of the lesion: when you first noticed it, what has changed, and your risk factors
- A visual and, where indicated, magnified examination of the lesion in context with your other moles
- Documentation so any future change can be compared objectively instead of from memory
- A defined next step: reassurance with a review interval, monitoring with photography, or referral for biopsy
At Pinkal Medical Aesthetics, our nurse practitioner-led model means Pinkal Gandhi assesses skin concerns directly and refers on when a lesion needs dermatology or surgical input. Suitability for any procedure or monitoring plan depends on that consultation, and in Ontario you can usually book with a nurse practitioner without a physician referral. (Confirm current booking, referral, and coverage policy before publishing.)
What Happens If a Biopsy Is Recommended?
A biopsy is how uncertainty ends, and a normal result is a useful outcome rather than a wasted appointment. Nothing else confirms what a lesion is.
- The area is numbed with local anaesthetic and a sample, or the whole lesion, is removed
- The sample goes to a pathology lab, and results typically take days to a few weeks depending on the lab
- If melanoma is confirmed, the report describes thickness and other features that guide the treatment plan
- Wider removal or further tests are sometimes recommended based on those findings
- Healing usually involves simple wound care, and some scarring is normal
What Should You Do While Waiting for Your Appointment?
Document, protect, and avoid interfering with the lesion. That is genuinely the whole list.
- Photograph the spot now, dated, with scale, in consistent lighting
- Note when you first saw it and what has changed
- Keep it covered from sun exposure and use sunscreen on surrounding skin
- Do not scratch, pick, shave over, cauterise, or apply removal products to it
- If it starts bleeding, growing rapidly, or ulcerating before your appointment, seek care sooner
What Do Stage 0 and Stage 1 Melanoma Mean?
Early-stage melanoma describes disease that has not spread beyond the skin, and it carries a considerably better outlook than later stages.
- Stage 0 (in situ): abnormal cells remain in the outermost skin layer and have not invaded deeper tissue
- Stage 1: the melanoma has invaded but remains thin and localised, with no evidence of nodal or distant spread
Reported five-year survival for localised melanoma is generally above 90 percent in registry data, while reported outcomes decline once spread occurs. Individual prognosis depends on thickness, ulceration, and other pathology findings, which is why a biopsy report guides the plan and a photograph cannot.
How Can You Lower Your Risk Going Forward?
You cannot eliminate melanoma risk, but sun behaviour and consistent checking are the two levers you control.
- Use broad-spectrum SPF 30 or higher daily on exposed skin, and reapply during long outdoor stretches
- Seek shade between late morning and mid-afternoon in the Ontario summer, when UV levels peak
- Wear a wide-brimmed hat, UV-filtering sunglasses, and long sleeves for extended outdoor work
- Avoid tanning beds entirely, since their use is associated with increased melanoma risk
- Do not rely on a base tan, which offers minimal protection
- Keep a self-check schedule, and keep dated photos of anything you are watching
Prevention lowers risk, it does not remove it, so continue checking regardless of how carefully you protect your skin.
Common Myths About Early Melanoma, Corrected
Myth Reality
Melanoma only appears on sun-exposed skin
It can appear on soles, palms, nails, and covered areas
If it does not hurt, it is fine
Early melanoma is usually painless
Dark skin means no risk
Risk is lower but real, and diagnosis is often later
Small spots are safe
Melanomas are sometimes diagnosed under 6 mm
A base tan protects you
Tanning bed use is linked to increased melanoma risk
A dark nail line is always a bruise
Bruises grow out, persistent pigmented bands need assessment
Quick Glossary of Terms Your Clinician May Use
Term Plain meaning
An irregular mole that is not cancer but is worth monitoring
Dermoscopy
Examination with a magnifying device that shows structures below the surface
In situ
Abnormal cells confined to the outermost skin layer
Breslow thickness
How deep a melanoma has grown, measured from the biopsy sample
Surgical removal of a lesion with a margin of surrounding skin
Photographic documentation of moles so change can be compared over time
Frequently Asked Questions
1. What is the very first sign of melanoma?
Usually a visible change: a new spot, or an existing mole shifting in size, shape, or colour. Physical symptoms such as itching or bleeding tend to appear later, not first.
2. Can melanoma be flat and small?
Yes. Many early melanomas are flat, under 6 mm, and completely painless. Irregular colour and asymmetry matter more than size does.
3. How fast does melanoma grow?
It depends on subtype. Superficial spreading types often change over months to years, while nodular melanoma can grow noticeably within weeks.
4. Is a dark line under my nail melanoma?
Usually not, but it needs checking. A band that persists or widens with no injury, or pigment spreading onto the cuticle, should be assessed promptly.
5. How often should I check my own skin?
Every one to three months suits most adults, and more often if you have higher-risk features. Photograph anything uncertain and compare again in eight to twelve weeks.
Next Step
If you have a spot that has changed, book a skin assessment rather than continuing to monitor it alone. Bring dated photos if you have them, note when the change started, and mention any family history of melanoma.
Medical disclaimer: This article provides general educational information. It does not diagnose any condition and does not replace individual medical advice. If you notice a changing lesion, rapid growth, bleeding, pain, or a non-healing sore, arrange an in-person assessment with a qualified clinician.