Oncologist James Wilson highlighted the warning signs of malignant moles and clarified common misconceptions about normal moles on the Dr. Hilary Show. He encouraged viewers to regularly check their moles using the "ABCDE" rule.

According to Wilson, "A" stands for "Asymmetry." Any changes in a mole's shape warrant a check-up.

"B" stands for "Border." If a mole's border becomes irregular or blurred, see a doctor.

"C" is for "Color." Many believe that if a mole isn't darkening, it's not serious. However, malignant moles can also become lighter. They can be pale, even pink, white, or blue, often mistaken for harmless scars or freckles. Experts warn these can be a dangerous form of cancer.

"D" represents "Diameter." If a mole is the size of a pencil eraser, it needs to be examined.

Finally, "E" stands for "Evolution." Note any changes or developments in a mole.

If a mole is larger than 6 mm in diameter, about the size of a pencil eraser, has an irregular border, it is likely cancerous. Photo: American Academy of Dermatology

If a mole is larger than 6 mm in diameter, about the size of a pencil eraser, has an irregular border, it is likely cancerous. Photo: American Academy of Dermatology

NHS Inform's ABCDE checklist is similar: asymmetry; irregular border; multiple colors; diameter greater than 6 mm; and evolving size over time.

If you notice any unusual signs according to the ABCDE rule and suspect skin cancer, consult a dermatologist for an accurate diagnosis. Most skin cancers are treatable if detected early.

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