A mole check is not about judging whether a spot looks ‘bad enough’ to worry about. It is a clinical assessment designed to identify suspicious changes early, when skin cancer is often far simpler to treat. In Australia’s high-UV environment, waiting for a mole to become painful, raised or dramatic can mean waiting too long.

Most moles are harmless. The concern is a mole that is new, changing or noticeably different from the others on your skin. Melanoma can develop in an existing mole, but it can also appear as a new spot on previously clear skin. Knowledge can save your life, particularly when it leads to prompt assessment.

What happens during a mole check?

A skin cancer doctor, GP with skin cancer expertise or dermatologist examines spots that concern you and may assess your skin more broadly. They will ask about changes you have noticed, your sun exposure, previous skin cancers and family history.

Clinicians commonly use a dermatoscope, a handheld lighted device that magnifies skin structures not visible to the naked eye. This helps them distinguish many benign lesions from spots that need closer investigation. A dermatoscopic examination is more reliable than a visual check alone, but no assessment can guarantee that every lesion will remain harmless in future. That is why monitoring changes matters.

If a spot is suspicious, the clinician may photograph and monitor it, arrange a biopsy, or remove it for laboratory testing. A biopsy is the only way to confirm whether a lesion is cancerous. Do not try to cut, freeze or remove a concerning mole yourself.

Warning signs that mean you should book promptly

The ABCDE guide is a useful starting point, not a diagnosis. Look for asymmetry, where one half differs from the other; an irregular or blurred border; uneven colour; a diameter that is growing or larger than about 6 mm; and evolution, meaning any change in size, shape, colour, sensation or behaviour.

Evolution is often the most useful clue. A mole that has changed over weeks or months deserves medical review even if it is small and otherwise seems ordinary. The ‘ugly duckling’ sign also matters: if one spot looks distinctly different from your other moles, have it checked.

Book an appointment as soon as practical if a spot bleeds, crusts, itches persistently, becomes tender, fails to heal, or appears as a new dark lesion in adulthood. Not every skin cancer is a dark mole. Some melanomas are pink, red, skin-coloured or lacking pigment, while non-melanoma skin cancers may look like a scaly patch, a sore or a pearly bump.

If a spot is rapidly changing, bleeding without an obvious injury, or you have been told it may be suspicious, seek an urgent clinical appointment. Every minute does not carry the same risk, but unnecessary delay is never a safer option.

Who benefits most from regular mole checks?

Anyone can develop skin cancer, including people who tan easily or have skin of colour. However, regular professional checks are particularly worthwhile for people with many moles, a personal history of skin cancer, a close family history of melanoma, or a history of severe sunburns.

Risk is also higher for people who work outdoors, spend significant time on the water or playing sport, use solariums now or in the past, or take medicines that suppress the immune system. Fair skin, freckles, light-coloured eyes and hair can add risk, but they are not prerequisites for melanoma.

There is no single schedule that suits every Australian. Some people need a full skin check every three to 12 months; others may only need review when a change is noticed. Your clinician can recommend an interval based on your individual risk. Between appointments, check your own skin regularly in good light, using a mirror or asking someone you trust to inspect difficult areas such as your back, scalp and the backs of your legs.

Make your appointment more useful

Before your mole check, note when you first noticed the spot and whether it has changed. Photos taken over time can be helpful, provided they do not replace an appointment. Wear clothing that is easy to remove if you are having a full-body assessment, and mention any previous biopsies, skin cancers or family history.

Continue protecting your skin even after a reassuring result. Use broad-spectrum SPF 50+ sunscreen, protective clothing, a broad-brimmed hat, sunglasses and shade, especially when UV levels are high. Sunscreen is one layer of protection, not a reason to stay in intense sun longer.

A normal result today is reassuring, but it does not cancel tomorrow’s risk. If a mole changes or a new spot appears, arrange a review rather than waiting for your next routine check.