Understanding Skin Changes: When Should You Get a Mole Checked?

What Is a Mole?

A mole is a common skin growth made up of pigment-producing cells called melanocytes. Most people have moles, which can vary in size, shape and colour.

Moles may:

• Be flat or raised
• Appear brown, black, pink or skin coloured
• Develop during childhood or adulthood
• Occur anywhere on the body

In most cases, moles are harmless and remain unchanged for many years.

Why Do Moles Change?

Some changes in moles can occur naturally over time. For example, a mole may become slightly raised, fade in colour or change gradually with age.

However, any noticeable or unusual change should be monitored carefully. In some cases, changes can be associated with skin cancer, including melanoma, which is the most serious type of skin cancer.

The ABCDE Rule: Signs to Look Out For

One of the most useful ways to assess a mole is by using the ABCDE rule.

A is for Asymmetry – If one half of the mole does not match the other half, it may be worth having it assessed.

B is for Border – Borders that are irregular, uneven or poorly defined can be a warning sign.

C is for Colour – A mole that contains multiple colours or changes colour over time should be checked.

D is for Diameter – Moles larger than approximately 6mm, particularly if growing, may require assessment.

E is for Evolving – Perhaps the most important sign is change. Any mole that changes in shape, size, colour or texture should be examined by a healthcare professional.

Other Warning Signs Not to Ignore

In addition to the ABCDE rule, you should seek advice if a mole:

• Starts to itch
• Becomes painful
• Bleeds or crusts over
• Develops inflammation around it
• Changes rapidly
• Looks noticeably different from your other moles

Some skin cancers can appear as entirely new marks on the skin rather than changes to existing moles.

What Is Melanoma?

Melanoma is a type of skin cancer that develops in melanocytes, the cells responsible for producing pigment in the skin.

Although melanoma is less common than some other forms of skin cancer, it can spread to other parts of the body if not detected and treated early.

The good news is that when identified at an early stage, treatment outcomes are often very successful.

Who Is Most at Risk?

Anyone can develop skin cancer, but certain factors can increase the risk.

These include:

• Fair skin that burns easily
• A history of significant sun exposure
• Frequent sunburn, particularly during childhood
• A large number of moles
• A family history of skin cancer
• Previous skin cancer diagnosis
• Use of sunbeds

Having one or more risk factors does not mean you will develop skin cancer, but it does make regular skin checks especially important.

How to Check Your Skin at Home

Regular self-examination can help you become familiar with your skin and spot changes early.

When checking your skin:

• Examine your body from head to toe
• Use a mirror to check hard-to-see areas
• Monitor existing moles for changes
• Look for new growths or unusual marks
• Take photographs if needed to track changes over time

Many people find that a monthly skin check helps them notice any significant changes more easily.

Protecting Your Skin – While not all skin cancers can be prevented, there are steps you can take to help reduce your risk.

Take Care in the Sun – Avoid excessive sun exposure, particularly during the middle of the day when UV levels are strongest.

Wear Sun Protection – Use a broad-spectrum sunscreen, wear protective clothing and seek shade where possible.

Avoid Sunbeds – Artificial UV exposure can increase the risk of skin cancer and premature skin ageing.

Check Your Skin Regularly – Becoming familiar with your skin can help you identify changes as early as possible.

When Should You Get a Mole Checked?

You should arrange a professional assessment if:

• A mole changes in size, shape or colour
• A new mole appears and looks unusual
• A mole starts bleeding, itching or crusting
• You have concerns about a particular area of skin
• A lesion looks different from your other moles

Even if a change turns out to be harmless, seeking advice can provide reassurance and help ensure any serious conditions are identified promptly.

How Sussex Premier Health Can Help

At Sussex Premier Health, our experienced specialists can assess concerning skin changes, evaluate moles and provide expert advice regarding diagnosis and treatment options.

We understand that any change to your skin can be concerning, which is why we focus on providing timely assessments, clear explanations and personalised care.

If further investigation is required, our specialists can guide you through the next steps and help ensure you receive appropriate treatment as quickly as possible.

Don’t Ignore Changes to Your Skin

Most moles are harmless, but recognising unusual changes is an important part of protecting your skin health.

Checking your skin regularly and seeking professional advice when something doesn’t look quite right can make a significant difference. Early assessment often provides peace of mind and, if treatment is needed, can lead to better outcomes.