How To Tell If A Mole Is Cancerous

Have you ever noticed an area of growth on your skin and wondered what it was?

Well, this can be a nevus popularly known as a mole.

A mole is an area of growth on human skin. Some moles can be present at birth, while others will develop over time as you grow.

Many moles that usually develop during adulthood are related to sun exposure and melanin production effects. Here is more on how to tell if a mole is cancerous.

Diagram showing signs of a mole being cancerous
Although you should always seek medical expertise, there are certain signs of a cancerous mole.

While mostly considered brown, moles come in different colors, including pink, red and flesh-colored. Most of the moles are just benign. However, keeping a keen eye on the changes that might indicate cancer growth is essential. Here we discuss how to tell if a mole is cancerous.

Types Of Moles

Moles exist in three main types which include:

Congenital moles

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Congenital mole

 

Congenital moles are usually present at birth and affect one out of 100 babies, according to the American Osteopathic College of Dermatology (AOCD). They are generally flat, differ in color, and are not likely to become cancerous.

Acquired moles

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Acquired moles

 

Interestingly, Acquired moles refer to those moles that develop as one grows. Most of these are brown and are usually caused by sun damage. They are round in shape and do not change significantly even as you age. However, acquired moles can darken with age but will not necessarily turn into melanoma.

Atypical moles

Atypical Mole
Atypical mole

 

Unlike the acquired and congenital nevi, atypical moles have a greater risk of becoming cancerous. AOCD estimates that one out of ten people in the United States has a minimum of one atypical nevus.

This means closely monitoring the moles for any atypical features is essential. Taking part in monthly skin check-ups and annual full-body examinations by a skilled dermatologist is important for early melanoma and abnormal detection.

These irregular moles can occur anywhere on the body. However, they are mostly on sun-exposed skin parts, including the shoulders and upper back. This, therefore, means that the risk of melanoma is usually greater on frequently sun-exposed skin like the upper back, neck, and head.

On the other hand, women have a higher risk of atypical moles, specifically on their lower calf and legs. Therefore any changing or new irregular mole on a woman’s lower leg warrants immediate medical attention and evaluation.

What Causes Moles?

In simple terms, moles are mainly caused by abnormal cell growth in your skin. Nonetheless, abnormal growth does not necessarily mean cancer. The moles can occur in all human races and skin colors, with the American Academy of Dermatology (AAD) estimating an average of 10 to 40 moles per individual.

baby with mole on forehead
Babies can be born with existing moles. This baby was born with a mole on her forehead.

Some are born with moles, as seen with congenital nevi, while others develop moles during adulthood. Sun exposure and other drivers associated with aging skin are considered the leading cause of nevi in adults.

The Difference Between Cancerous Moles And Regular Moles

As a prevention measure against melanoma development considered the deadliest form of skin cancer. You need to pay proper attention to your skin, particularly if you have something on your skin resembling a mole. Taking note of any characteristic changes in your moles will ensure you get to eliminate the possibility of skin cancer on time.

The “ABCDEs of Melanoma

Early detection and how to tell if a mole is cancerous are critical for melanoma. Dermatologists have devised a helpful visual guide that aids in differentiating benign and melanoma moles. The simple acronym helps in outlining mole cancer irregularity. The “ABCDEs of Melanoma,” therefore, refers to five visible indications of potentially cancerous moles. If your moles exhibit these attributes, then it may undoubtedly be melanoma.

Mole ABCDE
ABCDE’s of moles

A

Asymmetry, which means that the mole’s sides are not the same.

B

Border. Are the outside edges of the mole scalloped, jagged, or irregular?

C

Color. Is your mole color inconsistent, with blue, red, white, brown, or black shades?

D

Diameter. Is the mole bigger than 6mm in diameter? This is approximately the size of a pencil eraser. Keep in mind that melanoma may not necessarily start this big. If your mole seems to be enlarging, it’s a call to action.

E

Evolving. Monitor if the mole is changing in color size and shape.

 

These features play a vital role in how to tell if a mole is cancerous. While some are just small cosmetic imperfections on your skin, you should not neglect the fact that they can still be dangerous. A benign mole will not exhibit the above features. In case of any changes and developments with your moles, ensure you seek medical help as soon as possible.

How To Treat And Safely Remove Cancerous Moles

Once a cancerous mole is identified, it has to be removed immediately to prevent the spread of cancer beyond your skin to other body parts. There are different ways in which this can be done.

Treatment for cancerous moles is surgical mole removal, where they are cut out,” says DR. Weinstocks. Important to note is how to remove a mole depends on several factors, including the mole size, its location, and how deep it penetrates.

For the small moles that do not require stitches once removed, your doctor can do a shave excision. This involves numbing your skin and cutting the mole out of your skin using a small knife. A punch biopsy can also apply whereby a device similar to a cookie-cutter is used to get rid of the mole.

For a more profound and larger painful mole, surgery becomes the best option. During the surgery, the mole, together with the healthy skin portion surrounding the cancer mole, is cut out.

The best approach to preventing skin cancer is to always use skin products, including Tommy Timmy Smoother Skin Laser, regularly for suspicious-looking moles. Having a better understanding of the sign of cancerous moles makes it possible for you to identify them earlier and make an appointment with your doctor.

What Is a Mole?

Skin moles are common, but what is a mole, and how much do we know about them?

With various shapes, sizes, and even colors, it’s hard to know if they’re the dangerous type and how to remove them.

An expert in oncology at UnityPoint Health, Gina Mandernach offered a simple explanation of what moles are. Skin cells known as melanocytes are responsible for giving skin its natural color. This is why some people have lighter or darker skin tones naturally. The melanocytes are typically distributed throughout the skin to provide an even tone. However, when they grow in a cluster, they form a dark area that we call a mole.

Types Of Moles

Congenital Moles

Congenital Mole
Congenital melanocytic nevus

 

AKA Congenital melanocytic nevus These are moles that you’re born with and usually stay the same over time.

Common Moles

Acquired nevus
Acquired nevus

 

Also known as an acquired mole. This usually refers to moles that appear on the skin after birth. Most people have about 10-40 at any one time. However, having more than 50 may increase the risk of skin cancer.

Atypical Moles

Dysplastic nevus
Dysplastic nevus

 

This may also be referred to as a dysplastic nevus. An atypical mole may have an odd shape, be larger than a pencil eraser, and have multiple colors.

What causes moles?

Although many of us have moles, their causes are not well-understood. A new mole that appears may be harmless or cancerous. The causes of skin cancer have been studied, but there isn’t much research on what causes a harmless mole.

Genetic mutations are likely at least somewhat responsible. A 2015 study found that mutations in the BRAF gene were present, with 78% of moles that appeared after birth. BRAF mutations can also be involved with melanoma. However, the transformation of a harmless mole to a cancerous one is not well known.

Ultraviolet light also interacts with DNA and can cause genetic damage that leads to new mole formation. Some people may notice that they also have new moles or freckles appear on their skin after they get a tan.

Other reasons that you could develop a new mole may include the following:

  1. Increasing age
  2. Fair skin with light hair
  3. Family history of moles
  4. Drugs that suppress the immune system
  5. Response to drugs such as hormones, antibiotics, or antidepressants
  6. Genetic mutations
  7. Sunburn or tanning bed use

Anyone who develops moles should be aware of the potential inherent risk of transforming into a cancerous mole. A 2017 review of cases found that approximately 71% of melanoma originated with a new mole development. Anyone who develops moles, especially ones that appear to be concerning, should visit a dermatologist for expert advice.

Evaluating a Mole

Although your best option is to see a dermatologist if you have any concerns, you can monitor your moles as well. A benign mole should stay the same over time. This means that it should not grow or change color or shape. If you notice your moles changing over time, you should seek out an expert.

Moles that are concerning have certain characteristics. They are asymmetrical and may have irregular borders. The mole may have changed color or is more than one color. A mole that is growing or changing over time is also concerning. This does not mean that the mole is cancerous, but it is a cause for concern.

Mole Removal

If a mole is either undesirable or possibly malignant, you may want to have it removed or checked by a dermatologist at the very least. If concerns for melanoma, it’s best to have your doctor remove it. However, there are also options for at-home removal for relatively safe moles.

When a doctor removes a mole, your doctor will numb the area and then cut it out. They may bandage the area as well. The mole will be sent to a lab for testing if its appearance has a reason for concern.

For moles that are small and not considered dangerous, your doctor will actually shave them off. This also involves numbing the area and then using a surgical blade to shave off the raised portion. This does not require any stitches, and the area should heal in a week or two. However, this method only works with raised moles.

At-home mole removal

There are several removal methods you can perform at home. Some are more effective than others depending on the type and size of the mole. These are a few methods to try:

Tea tree oil

This essential oil may help to get rid of small moles. Use it when diluted and apply to the mole several times a day.

Mole Removal tools

There are Home removal tools and kits available which are affordable, effective, and safe. The Tommy Timmy Spot Blaster Pro is a popular, safe, and effective option that is very effective for removing moles and other skin applications.

Hydrogen peroxide

Used for years as a whitening tool, this won’t remove the mole but may bleach it effectively. Talk to a pharmacist to get the right type.

Banana peels

Some people frequently use the peel for its whitening effects. Rub the peel on the skin daily. This also moisturizes the skin as a bonus.

Do moles grow back?

This is a frequent question and a common concern that many people have. After all, why remove a mole if it’s going to come back? Moles that a doctor completely removes will not come back, although shaved moles can come back. With home remedies, individual results can vary. Unfortunately, there’s no way to predict whether this will happen or not. Additionally, if a mole has hairs, the hairs will often grow back even if the mole itself doesn’t.

The good news for anyone who has a mole removed is that removing it does not make it grow back larger. It’s also unlikely to develop into skin cancer. Having moles removed doesn’t prevent them from occurring in the future. Following skin protection guidelines and self-monitoring are the best ways to prevent future moles or problems. Keeping up with good skincare is highly recommended to avoid problems as well.