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Skin Cancer Explained

Normal mole or skin cancer: How to tell the difference

Look for the warning signs of skin cancer and mel
A woman uses a magnifying glass to inspect her back, distinguishing between a normal mole and potential skin cancer
MoleMap Team
October 20, 2021
5 minutes

What do nor­mal moles look like? A nor­mal mole takes the appear­ance of a small brown-coloured spot or growth on the skin. They can be flat or raised and are usu­al­ly round in shape.

The major­i­ty of these moles are caused by sun expo­sure. These types of nor­mal moles are com­mon on just about every­one, and most make their appear­ance dur­ing the first 25+ years of life. While it’s true that most moles will nev­er cause any prob­lems, some­one with a large num­ber of moles (think: 20 or more) is at high­er risk of devel­op­ing a form of skin can­cer like melanoma.

Unsure how to tell the dif­fer­ence between nor­mal and can­cer­ous moles? Here are some tips.

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Remem­ber the warn­ing signs of poten­tial­ly can­cer­ous moles

One of the red flags you need to watch out for are irreg­u­lar­ly shaped moles. Most nor­mal moles are small, brown, and round. So if you spot a mole that is irreg­u­lar­ly shaped and appears to change in size or shape over time, this is an indi­ca­tion that it could be a prob­lem. Your next course of action is to make an appoint­ment with a GP or skin cancer clinics detec­tion cen­tre for a skin check.

Most prob­lem moles are asym­met­ri­cal or lop­sided where­as nor­mal, non-can­cer­ous moles tend to appear as a per­fect cir­cle. And because asym­me­try in moles is one of the ear­li­est warn­ing signs of skin can­cer, you need to speak to your GP or skin can­cer detec­tion ser­vice to have it checked out.

Like­wise, pay close atten­tion to the diam­e­ter of the mole you’re con­cerned about. A mole that could be an ear­ly warn­ing sign of skin can­cer will usu­al­ly be larg­er than 6 mm in size, or about 14 inch. They can be small­er, but they don’t usu­al­ly stay that way and will grow over time.

Check your mole’s bor­ders and colours for signs

You need to pay atten­tion to your mole’s bor­ders, along with its over­all colour. Here’s what you need to know:

  • Mole bor­der: Nor­mal or com­mon moles tend to have sharp, well-defined bor­ders. If your mole seems to grad­u­al­ly fade into the sur­round­ing skin, that would fall out­side of this descrip­tion and may need fur­ther exam­i­na­tion with a GP or skin can­cer detec­tion ser­vice. The bor­ders of an atyp­i­cal mole are irreg­u­lar and/​or hazy, qual­i­ties that also become more pro­nounced as time goes on.
  • Mole colour: Most nor­mal moles are not only tan, brown, or the same colour as your flesh, but they are also uni­form in appear­ance. One part of the mole isn’t nec­es­sar­i­ly lighter or dark­er than any oth­er. If a mole appears to be mul­ti­coloured in that it has areas that are dark brown, blue, black or even red, this is some­thing you should show your GP.

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Iden­ti­fy a can­cer­ous mole by its evolution

Final­ly, you need to under­stand that a sin­gle exam­i­na­tion is not enough to write-off a mole for good.

One of the major indi­ca­tions of can­cer­ous moles has to do with how they evolve. They con­tin­ue to grow, change shape, change colour, and are gen­er­al­ly more pro­nounced over time. If you have a prob­lem mole that falls into that cat­e­go­ry, get your­self checked at a GP or skin can­cer detec­tion service.

Gen­er­al­ly speak­ing, nor­mal moles are sta­ble — they’ll look the same a year from now that they do today. A mole that gets larg­er or changes colour or has bor­ders that grow more irreg­u­lar are all prop­er­ties that you should keep a close care­ful watch for.

Spot it to stop it: MoleMap for ear­ly skin can­cer detection

Detect­ing skin can­cer ear­ly is the key, so it pays to do reg­u­lar self-checks. If you notice some­thing out of the ordi­nary, you need to get it looked at.

Since 1997 MoleMap has been a trust­ed provider of advanced melanoma detec­tion and sur­veil­lance ser­vices in Aus­tralia. Using the most thor­ough and trust­ed skin can­cer detec­tion tech­nol­o­gy in the world, our reg­is­tered nurs­es who are accred­it­ed melanog­ra­phers pro­vide skin check, and mole check. Our team of high­ly trained and inde­pen­dent der­ma­tol­o­gists, who work remote­ly, are experts at diag­nos­ing ear­ly stage melanoma.

If you have a mole of con­cern or you’re wor­ried it might be skin can­cer, don’t hes­i­tate to leave us a mes­sage, and we will get in touch with you right away.

MoleMap Team

At MoleMap we check, detect and treat skin cancer. Find out how you can protect your skin at your nearest MoleMap skin cancer clinic.

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MoleMap specialises in skin cancer detection, diagnosis, proactive monitoring and treatment. Want the best protection against melanoma and other skin cancers? Get your skin and moles checked early and often at a MoleMap skin cancer clinic.