How To Spot An Atypical Mole
At first glance, it can be tricky to see how an atypical mole differs from a normal mole. Below are some warning signs to watch for.
The ABCDE Warning Signs
The first five letters of the alphabet can be used as a guide to the warning signs for atypical moles and melanoma.
A is for Asymmetry. Most melanomas are asymmetrical. If you draw a line through the middle of the lesion, the two halves dont match, so it looks different from a round to oval and symmetrical common mole.
B is for Border. Borders tend to be uneven and may have scalloped or notched edges, while common moles tend to have more smoother, more even borders.
C is for Color. Multiple colors are a warning sign. While benign moles are usually a single shade of brown, a melanoma may have different shades of brown, tan or black. As it grows, the colors red, white or blue may also appear.
D is for Diameter and Dark. While its ideal to detect a melanoma when its small, it is a warning sign if a lesion is the size of a pencil eraser or larger. Some experts say it is also important to look for any lesion, no matter what size, that is darker than others. Rare, amelanotic melanomas are colorless.
E is for Evolving. Any change in size, shape, color or elevation of a spot on your skin, or any new symptom in it, such as bleeding, itching or crusting, may be a warning sign to see your doctor.
Images: What to watch for
Atypical mole with asymmetry, border irregularity and multiple shades of brown.
How Do You Know If A Spot Is Skin Cancer
To learn more you can read this article on the signs of skin cancer or this article on melanoma symptoms, but dont forget to get any skin concern you may have checked out by your doctor.
You can also read our guide on how to check your skin regularly, if you want to learn more about how to form a skin checking routine for yourself.
Squamous Cell Carcinoma Pictures
Squamous cell carcinoma also appears in areas most exposed to the sun and, as indicated in the pictures below, often presents itself as a scab or sore that doesnt heal, a volcano-like growth with a rim and crater in the middle or simply as a crusty patch of skin that is a bit inflamed and red and doesnt go away over time.
Any lesion that bleeds or itches and doesnt heal within a few weeks may be a concern even if it doesnt look like these Squamous cell carcinoma images.
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I Think A Mole May Be Cancerous Now What
If you have a concern about a mole, you are advised to visit a dermatologist. A doctor will look at the mole more closely, and if they think it exhibits cancerous symptoms, they may remove the mole entirely or take a sample of it to examine further. The doctor may also use a device called a dermatoscope, which magnifies and illuminates the skin to provide a more detailed image of the mole and its structure. If a mole is cancerous, then it is removed together with a small part of the surrounding skin through a relatively simple surgery conducted with a local anesthetic.
If left untreated, a suspicious mole could develop into melanoma, the rarest and most aggressive form of skin cancer. When caught early, melanoma is highly treatable, but if left to spread to other parts of the body it can be fatal.Learn more about skin cancer symptoms.
Pink Colored Melanoma Facts

Sometimes referred to as invisible melanoma. Technically its not invisible, of course, but because theyre difficult to spot during an exam, theyre called invisible.
Two to eight percent of all melanomas are amelanotic.
Most occur in white patients and start growing as pink which can be a light pinkish-flesh color, a pinkish red and any shade in between.
It can even escape detection by a dermatologist conducting a routine skin exam because its color makes its irregular borders and asymmetry more difficult to notice with the naked eye.
We wanted to identify patients at higher risk for amelanotic melanoma in whom we need to look carefully for this cancer type, says Nancy E. Thomas, MD, in the study report.
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Skin Cancer And Moles
It is well known that excessive sun exposure can promote the development of many skin cancers. The 3 main types of skin cancer are melanoma, basal cell carcinoma , and squamous cell carcinoma . Melanoma is the most deadly skin cancer because it spreads more readily than the other forms of skin cancer. Basal cell carcinoma is the most common form of skin cancer, and it typically does not spread. Squamous cell carcinoma is the second most common form of skin cancer, and while it can spread, it does not do so as commonly as melanoma. The risk of getting basal cell carcinoma or squamous cell carcinoma is determined by a person’s lifetime exposure to sun and the person’s skin color, with pale skin being more prone to skin cancer.
Your awareness of the signs of skin cancer might allow you to find an early lesion on yourself or a loved one, before it is a significant health problem. Pre-cancerous skin changes include red, scaly lesions called actinic keratoses. When on the lip , it is called actinic cheilitis. Actinic keratoses are considered to be premalignant lesions as 1 in 100 cases per year will develop into squamous cell carcinoma. Moles that have started to itch or bleed or change in color or shape are also warning signs of possible melanoma.
What Causes A Mole To Become Cancerous
Obviously, not every mole will turn into a melanoma, and not every melanoma stems from a strange mole, says Dr. Jaliman. In fact, researchers don’t know exactly what causes some moles to turn cancerous, while others stay benign, though there are a handful of risk factors that contribute.
Sunlight or artificial rays from tanning beds or other sources are one major risk factor. “UV light exposure is the single biggest risk factor for the development of cancerous spots,”Joshua Zeichner, MD, associate director of cosmetic and clinical research in dermatology at Mount Sinai Hospital, tells Health. “The UV light causes free radical damage to the skin cells and leads to a transformation into an atypical, unregulated cell.”
Having a large amount of moles-more than 50 common moles, or more than five atypical moles-can also up someone’s risk of developing melanoma, per the NCI.
Other risk factors include: having fair skin, freckling, and light hair a family or personal history of skin cancer or melanoma, and having a weakened immunes system, either from illness or medication. Being older and male are also risk factors for melanoma, the NCI says.
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Tips For Skin Cancer Screening
When it comes to checking for skin cancer, in addition to looking for all the above warning signs we just discussed, WebMD suggests keeping track of all your moles. The best way to do this is with photos. Mark the photos with a date so you know how fast they are growing and changing, if at all. If they do change in any way or exhibit other ABCDE features, see your doctor, writes the source.
Obviously, there are parts of our body that we cannot see. Unfortunately, they still need to be checked! Consider investing in a full-length mirror. You could also have a partner, close family member, or even a friend help out. When youre doing a full body check, start with the head and work your way down looking at each and every single body part, front and back. You even need to check fingernails and toenails! Also be sure to check the hidden areas: between your fingers and toes, the groin, the soles of your feet, and the backs of your knees, says WebMD.
What Is A Common Mole
A common mole is a growth on the skin that develops when pigment cells grow in clusters. Most adults have between 10 and 40 common moles. These growths are usually found above the waist on areas exposed to the sun. They are seldom found on the scalp, breast, or buttocks.
Although common moles may be present at birth, they usually appear later in childhood. Most people continue to develop new moles until about age 40. In older people, common moles tend to fade away.
Another name for a mole is a nevus. The plural is nevi.
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Make A Difference: Start Checking Your Skin Today
People of color have a lower risk than whites of getting skin cancer. But they still have a risk. Monthly skin self-exams can help you find skin cancer early when a cure is likely.
ImagesImages 3 11: Used with permission of Journal of the American Academy of Dermatology:
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Images 3, 4, 9, 10, and 11: J Am Acad Dermatol. 2014 70:748-62.
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Images 5, 6, 7, and 8: J Am Acad Dermatol. 2006 55:741-60.
Image 12: Image used with permission of the American Academy of Dermatology National Library of Dermatologic Teaching Slides.
ReferencesAgbai ON, MD, Buster K, et al. Skin cancer and photoprotection in people of color: A review and recommendations for physicians and the public. J Am Acad Dermatol 2014 70:748-62.
American Academy of Dermatology. Dermatologists provide recommendations for preventing and detecting skin cancer in people of color. News release issued February 4, 2014.
Gloster HM and Neal K. Skin cancer in skin of color. J Am Acad Dermatol 2006 55:741-60.
How Is Melanoma Diagnosed
The only way to diagnose melanoma is to remove tissue and check it for cancer cells. The doctor will remove all or part of the skin that looks abnormal. Usually, this procedure takes only a few minutes and can be done in a doctor’s office, clinic, or hospital. The sample will be sent to a lab and a pathologist will look at the tissue under a microscope to check for melanoma.
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Tracking Changes To Your Skin With An App
Some people find it helpful to photograph areas of their skin such as the back or individual lesions to be able to better spot any future changes.
Over the past years, smartphone apps that can help consumers track moles and skin lesions for changes over time have become very popular and can be a very helpful tool for at-home skin checks.
This page does not replace a medical opinion and is for informational purposes only.
Please note, that some skin cancers may look different from these examples. See your doctor if you have any concerns about your skin.
It might also be a good idea to visit your doctor and have an open talk about your risk of skin cancer and seek for an advice on the early identification of skin changes.
* Prof. Bunker donates his fee for this review to the British Skin Foundation , a charity dedicated to fund research to help people with skin disease and skin cancer.
Make a difference. Share this article.
Skin Cancer Pictures: What Does Skin Cancer Look Like

Skin cancer images by skin cancer type. Skin cancer can look different than the photos below.
Basal Cell Carcinoma | Squamous Cell Carcinoma | Bowens Disease | Keratoacanthoma | Actinic Keratosis | Melanoma
Skin cancer often presents itself as a change in the skins appearance. This could be the appearance of a new mole or other mark on the skin or a change in an existing mole.
Please remember that you should always seek advice from your doctor if you have any concern about your skin. Skin cancers often look different from skin cancer images found online.
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How Common Are Flesh Colored Melanomas
Amelanotic melanomas are a rarer type of melanoma, says Dr. Rebecca Tung, MD, director of the dermatology division at Loyola University Health System, Chicago.
The incidence of amelanotic melanoma is only 2-8 % of all melanomas.
They often appear as flesh colored to reddish lesions, often on the skin of the trunk, and do not follow the usual ABCD rules of melanoma detection.
Sometimes, this flesh or pinkish/red colored melanoma can pass as basal cell carcinoma or squamous cell carcinoma.
Alarmingly, it can also pass as a common pimple or blemish.
Patients often initially mistake this type of melanoma as scars or pink moles, continues Dr. Tung.
Even under a special magnifying device called a dermatoscope, the features which usually signal cancer are often absent.
For these reasons, diagnosis is frequently delayed.
If you dont have a good feeling about a new spot on your skin, have it removed.
Suspicious lesions should be biopsied to confirm the diagnosis, says Dr. Tung.
Treatment is surgical with wide local excision.
If the lesion extends deeply into the skin, lymph nodes may also need to be sampled to determine if they do or do not contain melanoma.
Dr. Tungs specialties include general dermatology with skin cancer surveillance, moles, melanoma, surgery and cosmetic dermatology.
How Are Cancerous Moles Treated
If you or your doctor discovers a concerning mole, it will normally be placed into one of three categories: mild, moderate, and severely atypical , says Dr. Stevenson. “Generally speaking we remove atypical moles that are moderate or severe to ensure entire lesion is out and there was not a sampling error with the biopsy that only took a portion of the specimens,” she says.
If a skin biopsy determines melanoma, swift action is necessary, since the type of skin cancer can spread very quickly to other tissues and organs, per the AADA. Depending on the stage of your cancer, along with other factors, your care team will come up with a treatment plan for the melanoma, that may contain any of the following options.
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When To See A Doctor
Skin cancer is by far the most usual type of cancer. In the event that you know what to look for, you can spot warning signs of skin cancer early. Finding it early, when its little and has not spread, makes skin cancer much simpler to treat. When a mole looks uncommon, changes or grows, make an appointment with your health care provider.
How People Of Color Can Reduce Their Skin Cancer Risk
Dermatologists in the United States tell their patients with skin of color to reduce their risk of getting skin cancer by doing the following:
Seek shade whenever possible. The sun causes many skin cancers.
Wear clothing that protects your skin from the sun. A wide-brimmed hat can shade your face and neck. You also want to wear shoes that cover the entire foot. African Americans often develop skin cancer on their feet.
Wear sunscreen. Yes, people of color should wear sunscreen. Dermatologists recommend that people of color use sunscreen that has:
Apply sunscreen to dry skin 15 to 30 minutes before going outdoors. You want to apply sunscreen to skin that will be bare. Be sure to apply sunscreen every day even on cloudy days.
When outdoors, reapply sunscreen. You want to reapply:
Never use tanning beds or sunlamps. These emit harmful UV rays, which can cause skin cancer.
Skin of color: How to prevent and detect skin cancer
Although people of color have a lower risk of developing skin cancer than Caucasians, when skin cancer develops in people of color, it is often diagnosed at a more advanced stage making it more difficult to treat.
Follow these tips from dermatologists to protect your skin from the sun and reduce your risk of skin cancer.
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Mole Color That Changes Over Time
If your mole has lightened or become darker over time, this may be an indication that it is changing. Once again, you should have this checked out. This is when having a time-lapse photo collection would really help. Use SkinVision to take a photo and then compare it over time can really help to identify a darkening mole or a mole with changing color.
The moles on your skin are usually perfectly fine and a normal reaction to sun exposure.
Warning Signs That It May Be Cancerous
Look for these indicators that your mole may be cancerous:
· Changes in size · A change in shape · Colour changes · A loss of symmetry · Itchiness, pain or bleeding · Crustiness· Exhibiting three different shades of brown or black· A change in elevation
If you notice any of these symptoms, contact a doctor to examine your mole.
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What Is The Treatment For Atypical Moles
If you have one or more atypical moles, talk to your dermatologist about an appropriate surveillance program and whether or not any moles need a biopsy to ensure they are not melanomas. The more abnormal features moles have, the riskier they are. Frequent monitoring of these moles is especially crucial, so that if a melanoma arises, it can be detected and treated as early as possible.
If your doctor identifies a mole as suspicious, or if new moles appear after age 40, you may need a biopsy.
Examine Moles For Cancer

The majority of moles are harmless. They are a typical sort of skin development that often appear as little, dim earthy colored spots and are caused by clusters of pigmented cells. Moles are normally showing up during childhood and adolescence. Ten to forty moles are the average range that people can get. Some of which may change in appearance or blur away over time.
However, moles can become cancerous. Observing moles and other pigmented patches is a significant step in recognizing skin cancer, particularly malignant melanoma. Malignant melanoma, also known as melanoma, is a form of skin cancer that starts in the cells known as melanocytes. Melanoma looks like a mole however, its changes in shape and color. Moreover, the following symptoms can be a warning sign to you and help you to determine a normal mole from an unusual one.
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