Australia has one of the highest rates of skin cancer in the world. Years of sun exposure, particularly during childhood and early adulthood, can gradually damage the skin and increase the risk of developing skin cancer later in life.
The challenge is that skin cancer often begins with subtle changes. A small spot that doesn’t heal. A mole that slowly changes shape. A patch of skin that keeps crusting or bleeding. These changes are easy to overlook, especially when they appear harmless at first.
Recognising early warning signs can make a significant difference. When skin cancer is detected early, treatment is usually simpler, and outcomes are far better.
Why Skin Cancer Is So Common in Australia
Australia’s high ultraviolet (UV) radiation levels play a major role in skin cancer risk. Over time, repeated exposure to the sun damages the DNA in skin cells. This damage can accumulate silently for years before a cancer develops.
Several factors increase the likelihood of developing skin cancer, including:
- fair or light skin that burns easily
- frequent sun exposure or outdoor work
- a history of sunburns
- having many moles or unusual skin spots
- previous skin cancer
- a family history of melanoma
While anyone can develop skin cancer, these factors make regular skin awareness especially important.
The Three Main Types of Skin Cancer
Not all skin cancers look the same. Understanding the three main types can help people recognise potential warning signs earlier.
Basal Cell Carcinoma (BCC)
Basal cell carcinoma is the most common form of skin cancer. It usually develops slowly and is most often found on sun-exposed areas such as the face, ears, neck, or shoulders.
Early signs may include:
- a small pearly or shiny lump
- a red or pink patch that may be slightly scaly
- a sore that doesn’t heal
- a spot that bleeds or crusts repeatedly
BCC rarely spreads to other parts of the body, but it can grow deeper into surrounding tissue if left untreated.
Squamous Cell Carcinoma (SCC)
Squamous cell carcinoma can develop more quickly than BCC and may appear as:
- a rough or scaly red patch
- a firm lump or thickened area of skin
- a sore that heals and then returns
- a lesion that becomes tender, crusted, or ulcerated
SCC commonly occurs on areas frequently exposed to sunlight, including the face, scalp, hands, and arms.
Melanoma
Melanoma is less common than other types of skin cancer but is considered the most serious because it can spread to other organs if not detected early.
Melanoma often begins as a new mole or a change in an existing mole, but it can also appear as a new pigmented spot on the skin.
Changes to watch for include:
- uneven shape
- irregular borders
- multiple colours within one mole
- growth in size
- itching, bleeding, or crusting
Early detection of melanoma significantly improves treatment outcomes.
The ABCDE Rule for Suspicious Moles
Doctors often use the ABCDE rule as a simple guide when examining moles or pigmented spots.
A – Asymmetry
One half of the mole does not match the other.
B – Border
The edges appear irregular, jagged, or blurred.
C – Colour
The mole contains different shades of brown, black, red, or even blue.
D – Diameter
The spot becomes larger over time, particularly if it grows beyond the size of a pencil eraser.
E – Evolving
The mole changes in size, shape, colour, or texture.
A mole does not need to show all of these features to deserve attention. Any noticeable change should be assessed by a doctor.
The “Ugly Duckling” Sign
Another helpful way to think about skin changes is the “ugly duckling” rule.
Most people’s moles tend to look similar to each other. If one spot appears noticeably different from the rest — darker, larger, irregular, or simply unusual — it may deserve closer attention.
This simple observation often helps people identify early melanoma before other warning signs become obvious.
Early Warning Signs People Often Miss
Skin cancer does not always begin as a dark mole. Many early warning signs are easy to overlook because they resemble minor skin irritation.
Pay attention to spots that:
- do not heal within several weeks
- bleed, crust, or repeatedly scab over
- grow steadily over time
- appear as scaly, rough patches
- develop into new lumps or nodules
- feel itchy, tender, or painful
A common pattern people describe is a spot that seems to heal and then return again. This recurring behaviour can be an early indicator that a lesion needs medical evaluation.
When Should You See a Doctor?
Not every spot on the skin is cancerous. Many harmless conditions — such as benign moles, age spots, or sun damage — can also cause changes in the skin.
However, it is sensible to seek medical advice if you notice:
- a new or changing mole
- a persistent sore or lesion that does not heal
- a spot that changes colour or shape
- a lesion that bleeds without injury
- a skin growth that continues to enlarge
Doctors can examine suspicious spots using specialised tools and determine whether further assessment is necessary.
Early evaluation provides reassurance when the lesion is harmless and allows prompt treatment when something more serious is detected.
Why Early Detection Matters
One of the most important facts about skin cancer is that early detection greatly improves outcomes.
When identified early, most skin cancers can be treated with relatively simple procedures. When detection is delayed, treatment may become more complex and the risk of complications increases.
This is particularly true for melanoma, where early diagnosis can significantly improve survival rates.
Paying attention to small changes in your skin can therefore play a crucial role in protecting long-term health.
Getting to Know Your Own Skin
One of the most practical steps people can take is simply becoming familiar with their skin.
Take time occasionally to look for new spots or changes in existing ones. Areas that are easy to forget include the scalp, back, back of the legs, and behind the ears.
Changes often develop slowly, which means they may only become obvious when compared over time.
The goal is not to examine every spot with worry, but to develop an awareness of what is normal for your skin so that unusual changes stand out.
When to Consider a Professional Skin Check
Some people may benefit from regular skin checks, particularly those with higher risk factors such as significant sun exposure, fair skin, many moles, or a personal history of skin cancer.
A doctor can assess suspicious lesions and determine whether further testing or treatment is required.
If you notice a skin spot that changes, persists, or simply concerns you, it is always reasonable to seek medical advice.
A Simple Step Toward Protecting Your Health
Skin cancer often begins with small, easily overlooked changes. Recognising these early signs, whether it is a mole that evolves, a sore that will not heal, or a spot that behaves differently from the rest, can make a meaningful difference.
If you have noticed a new or changing skin lesion, or would like professional advice about your skin health, the team at Totum Medical can help assess your concerns and guide you on appropriate next steps. Early evaluation provides clarity, reassurance, and, when necessary, timely treatment.