Moles, Marks, and Melanoma: Your 5-Minute Skin Safety Guide

We all have them - moles, freckles, and birthmarks that tell the story of our skin. But how often do you actually stop to look at them? In a world where we’re increasingly aware of the dangers of UV rays, knowing what is "normal" for your skin is one of the most important health habits you can develop.

In our latest episode, Dr. Geoff Hamp and Dr. Sam McGinley take a deep dive into dermatology. They discuss how to perform a proper head-to-toe skin check and explain why your "ugly duckling" mole is the one you should pay the most attention to.

The ABCDE Rule: Your Early Warning System

Doctors use a specific shorthand to decide if a mole needs a closer look. You can use this same system at home once a month.

• A – Asymmetry: Does one half of the mole look different from the other?

• B – Border: Are the edges blurred, jagged, or "ragged"?

• C – Colour: Is the mole a mix of different shades (brown, black, red, or even blue)?

• D – Diameter: Is it larger than 6mm (about the size of the end of a pencil)?

• E – Evolving: This is the most important one. Has it changed in size, shape, or colour over the last few weeks or months?

  
  

The "Ugly Duckling" Sign

Sometimes a mole doesn't perfectly fit the ABCDE criteria, but it just looks different from all your other moles. This is what GPs call the "Ugly Duckling." If you have one spot that stands out as the odd one out, it’s always worth getting it checked.

Beyond the Mole: Other Red Flags

It isn't always about a dark spot. Geoff and Sam also highlight other changes to look out for, such as:

• A sore that won't heal.

• A new growth that feels "crusty" or bleeds.

• A mole that has started to itch or feel painful.

  
  

Don't Guess—Get it Checked

If you find something concerning, don’t turn to "Dr. Google." Most skin changes are harmless, but only a professional can give you peace of mind. Your GP can use a tool called a dermatoscope to see deep into the skin's structure and decide if a specialist referral is needed.

Listen to the Full Episode

From sunbeds and SPF to the latest in mole-mapping technology, hear the full discussion here.

[Listen to "Skin Moles and Melanoma" on  Spotify, Apple Podcasts, Amazon Music, or right here on Coughy Break.]

Helpful Resources

• British Association of Dermatologists: Check your skin guide

• Melanoma Focus: Patient Support

Join the Conversation

Do you have a question about a skin change, or a topic you'd like the Doctors to cover next?

• Email: hello@coughybreak.com

Legal Disclaimer: All content provided is for general informational purposes only and does not constitute medical advice. Content is valid in England at the time of recording (April 2026). Always consult a qualified medical professional for medical matters.