
Early detection saves lives. When it comes to spotting the early signs of skin cancer, knowing what to look for and checking your skin regularly can make a significant difference. In fact, most skin cancers are highly treatable when identified early, which is why awareness and routine self-examination are so important.
This guide will walk you through exactly how to check your skin, what changes to watch for, and when to seek expert advice.
Why Checking for Early Signs of Skin Cancer Matters
Skin cancer is the most common cancer in the UK, but it is also one of the most preventable and treatable when caught early.
Many people assume skin cancer only appears in existing moles. However, around 70% of melanoma cases develop as new marks on the skin, not from pre-existing moles.
This means recognising the early signs of skin cancer is not just about monitoring moles, but understanding your skin as a whole.
How Often Should You Check Your Skin?
Medical guidance recommends checking your skin once a month.
Regular checks help you:
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- Understand what is normal for your skin
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- Notice subtle changes over time
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- Identify early signs of skin cancer quickly
Consistency is key. A quick check once in a while is not as effective as a regular routine.
How to Perform a Skin Self-Examination to Detect Early Signs of Skin Cancer
A thorough skin check only takes 10–15 minutes and should be done in a well-lit room with a mirror.
Step-by-step guide:
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- Examine your face, ears, and scalp (use a comb or hairdryer to part hair)
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- Check your hands, nails, and arms
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- Look at your chest, abdomen, and sides
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- Inspect your back and buttocks using a mirror or assistance
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- Check your legs, feet, soles, and between toes
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- Do not forget hidden areas like under breasts and the genital area
Using both a full-length and handheld mirror can help ensure no area is missed.
The Key Early Signs of Skin Cancer to Look For
When checking your skin, focus on changes. These are the most important indicators of early skin cancer.
1. New Marks or Growths
One of the most common early signs of skin cancer is:
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- A new mole or mark appearing on adult skin
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- A spot that looks different from others
These may appear as:
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- Flesh-coloured bumps
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- Flaky or raised patches
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- Spots that do not go away
2. Changes in Existing Moles
Monitor any mole for:
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- Increase in size
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- Change in shape
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- New or uneven colours
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- Thickening or elevation
Any noticeable change could indicate early signs of skin cancer and should be assessed promptly.
3. The ABCDE Rule
A widely used medical guideline for identifying early signs of skin cancer is the ABCDE rule:
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- A – Asymmetry: One half does not match the other
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- B – Border: Edges are irregular, blurred, or jagged
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- C – Colour: Multiple or uneven colours
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- D – Diameter: Larger than 6mm (about a pencil eraser)
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- E – Evolving: Any change in size, shape, colour, or symptoms
These features are strongly associated with melanoma, the most serious form of skin cancer.

4. Persistent Sores or Lesions
Another key early sign of skin cancer is:
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- A sore that does not heal
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- A lesion that repeatedly crusts or bleeds
Healthy skin typically heals within a few weeks. Anything that does not should be checked.
5. Unusual Sensations
Be aware of:
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- Itching
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- Tenderness or pain
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- Burning sensations
While not always serious, these symptoms alongside visible changes can indicate early signs of skin cancer.
6. Redness or Surrounding Changes
Look for:
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- Redness around a mole
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- Swelling or inflammation
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- Changes in surrounding skin
These subtle changes are often overlooked but can be early indicators.
7. Flaky, Scaly, or Rough Patches
Skin cancers do not always look like moles. Some may appear as:
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- Rough or scaly patches
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- Flat discoloured areas
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- Slightly raised lesions
These can sometimes be mistaken for dry skin or irritation, making awareness essential.
Areas People Often Miss
Even with regular checks, certain areas are commonly overlooked:
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- Scalp
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- Behind the ears
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- Back and shoulders
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- Soles of the feet
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- Between toes
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- Under nails
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- Genital area
Skin cancer can develop anywhere, not just sun-exposed areas, so a full-body check is essential.
When to Seek Professional Advice
If you notice any early signs of skin cancer, do not delay seeking medical advice.
You should contact a healthcare professional if you observe:
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- A new or changing mole
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- A sore that does not heal
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- Any unusual skin change that concerns you
Why Choose Cathedral Dermatology?
At Cathedral Dermatology, we understand how important it is to identify the early signs of skin cancer quickly and accurately.
Our expert team offers:
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- Comprehensive skin assessments
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- Consultant-led dermatology care
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- Advanced diagnostic techniques
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- Personalised treatment plans
We prioritise early detection and patient reassurance, ensuring you receive expert care at every stage.
Building a Skin Check Routine to Detect Early Signs of Skin Cancer
Incorporating skin checks into your routine makes it easier to stay consistent.
Tips for success:
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- Check your skin on the same day each month
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- Use good lighting and mirrors
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- Take photos to track changes over time
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- Ask a partner or family member to help with hard-to-see areas
The more familiar you are with your skin, the easier it is to spot early signs of skin cancer.

Book a Professional Mole Screening with Cathedral Dermatology
While learning to recognise the early signs of skin cancer is an essential first step, nothing replaces a professional assessment. If you have noticed any changes in your skin or simply want peace of mind, our walk-in mole screening service at Cathedral Dermatology offers fast, expert evaluation without the need for a referral.
Our consultant-led team provides:
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- Thorough skin checks
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- Expert evaluation of any suspicious moles or lesions
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- Access to advanced diagnostic tools
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- Clear guidance on next steps, if required
With a strong focus on early detection, we are here to help identify the early signs of skin cancer quickly and accurately.
Whether you have a specific concern or would like a routine check, our service is designed to be convenient, reassuring, and clinically thorough.
Learn more about our services: