Most moles are harmless. Still, a spot that grows, darkens, or starts to itch can leave you wondering if it is a mole or skin cancer. That question is worth taking seriously. Skin cancer is the most common cancer in the United States, and it is also one of the most treatable when found early.
The good news is that most warning signs are visible. As board-certified dermatologists who have been checking moles in Weber County for more than 40 years, we have learned which changes deserve a closer look. Here is how to spot a suspicious mole and know when to see a dermatologist.
Key Takeaways
- Most moles are benign, but you should always have a changing mole checked.
- Warning signs include growth, uneven shape, color changes, new textures, itching or bleeding, spots that will not heal, and a mole that looks different from the rest.
- The ABCDEs of melanoma give you a simple way to check your skin at home.
- Early detection of skin cancer leads to simpler treatment and better outcomes.
- A full-body skin exam with a dermatologist is the most reliable way to know for sure.
What a Normal Mole Looks Like
A normal mole is a small cluster of pigment cells. Most people develop them in childhood and early adulthood, and many adults have 10 to 40.
Healthy moles tend to share a few traits:
- Shape: Round or oval
- Border: Smooth and even
- Color: One consistent shade, usually tan, brown, or skin-toned
- Size: Smaller than 6 millimeters, about the size of a pencil eraser
- Texture: Flat or slightly raised
- Stability: Stays the same over time
When you understand what is normal for your skin, an abnormal mole is much easier to spot.
The ABCDEs of Melanoma
Dermatologists use the ABCDEs of melanoma to evaluate moles, and you can use them at home too. Here are some of the most important melanoma warning signs to know.
- A is for Asymmetry: One half of the mole does not match the other.
- B is for Border: The edges are ragged, notched, or blurred.
- C is for Color: The mole has several shades, such as brown, black, red, white, or blue.
- D is for Diameter: The mole is larger than 6 millimeters, though melanomas can be smaller.
- E is for Evolving: The mole is changing in size, shape, color, or height, or it has new symptoms.
A mole does not need to meet every letter to be a concern. Even one of these signs is reason to have it checked.
7 Signs of Skin Cancer You Should Never Ignore
The following changes are some of the most common signs of a cancerous mole. If you notice any of them, schedule a mole check with a dermatologist.
1. A Mole Getting Bigger
A mole getting bigger is one of the clearest red flags, especially if it grows over weeks or months. Moles usually stop growing by adulthood. Take a photo with a ruler next to it so you can track any change.
2. An Irregular Shape or Border
Benign moles are usually symmetrical with clean edges. An irregular mole may look lopsided, or its border may appear scalloped, jagged, or fuzzy. A mole changing shape deserves attention, even if it has not grown.
3. A Mole Changing Color
A healthy mole stays one even color. A mole that changes color, or shows several shades at once, can be a melanoma warning sign. Watch for areas that darken, fade, or turn red, white, or blue.
4. Surface or Texture Changes
Check any mole that becomes scaly, rough, or raised. A crusty mole or one that oozes can point to basal cell carcinoma, squamous cell carcinoma, or melanoma.
5. An Itchy or Bleeding Mole
Most moles cause no symptoms. An itchy mole, a tender mole, or a bleeding mole that was not scratched or injured is worth a closer look, especially if the symptoms keep coming back.
6. A New Mole or a Sore That Will Not Heal
Most moles appear before age 30. A new mole in adulthood is not always a problem, but it should be watched closely. A sore that has not healed after 3 to 4 weeks should also be seen by a dermatologist.
7. The Ugly Duckling Sign
Most of your moles probably look alike. The ugly duckling sign refers to one that stands out from the rest. Dermatologists use this sign to find melanomas that do not fit the ABCDE pattern, so trust your eye if one mole looks out of place.
What Does Skin Cancer Look Like?
People often ask this question, but the answer depends on the type of skin cancer. Skin cancer symptoms can also look different from one person to another.
Melanoma
Melanoma is the most serious type of skin cancer. It often looks like a dark, uneven mole, though it can also be pink, red, or skin-toned. A melanoma mole may develop from an existing mole or appear as a brand-new spot.
Basal Cell Carcinoma
Basal cell carcinoma is the most common type. It often looks like one of the following:
- A pearly or waxy bump
- A flat, scar-like patch
- A sore that heals and returns
Squamous Cell Carcinoma
Squamous cell carcinoma often looks like a firm red bump or a scaly, crusted patch that may bleed.
Skin cancer can also appear on skin that rarely sees the sun, including the scalp, the soles of the feet, and between the toes. That is why a head-to-toe exam matters.
Atypical Moles: Not Normal, but Not Cancer
Some moles fall in between. Dermatologists call these atypical moles, or dysplastic nevi. They are often larger than normal moles and may have uneven color or fuzzy borders. Under a microscope, their cells look slightly unusual, but they are not cancerous.
Most atypical moles never turn into cancer. Still, people who have several of them have a higher lifetime risk of melanoma. If you have an atypical mole, your dermatologist may recommend:
- Photos to track it over time
- More frequent skin checks
- Removal if it changes
How to Tell if a Mole Is Cancerous
Knowing whether a mole is cancerous starts at home, but ends with a dermatologist.
Do a Monthly Self-Check
- Use a well-lit room, a full-length mirror, and a hand mirror.
- Check your scalp, back, and the backs of your legs, or ask someone to help.
- Take photos of any moles you want to track.
- Compare each month to find new or changing spots.
- Check your skin around the same time each month to make subtle changes easier to notice.
Know When a Biopsy Is Needed
Self-checks help you notice changes, but they cannot confirm a diagnosis. A biopsy is the only way to know for certain whether a mole is cancerous. It is a quick in-office procedure that removes a small sample for testing.
When to Worry About a Mole
Schedule an appointment if one of your moles shows any of the warning signs above, or if something about a spot just feels off. You know your skin best.
Skin cancer warning signs are not always dramatic. Subtle changes in color, texture, size, or sensation can be enough reason to have a dermatologist take a closer look.
Who Is at Higher Risk
You may benefit from more frequent exams if you have:
- A personal or family history of skin cancer
- Fair skin, light eyes, or light hair
- A history of blistering sunburns or tanning bed use
- More than 50 moles, or moles that are large or unusual
- A weakened immune system
Why Utah Skin Needs Extra Attention
UV exposure increases with altitude, and Utah has one of the highest melanoma rates in the country. For many people in Weber County, a yearly skin cancer screening is a smart habit.
What to Expect at a Skin Cancer Screening
A dermatologist skin cancer check with our team is quick and painless. A melanoma screening also gives us a chance to examine changing or unusual spots before they become harder to treat.
Your Skin Exam
Your provider will review your history and any spots you have noticed. Then they will examine your skin from head to toe, including areas that are easy to miss.
Biopsy and Diagnosis
If a spot looks suspicious, your dermatologist will perform a biopsy. Once the results are in, your provider will explain the diagnosis and create a treatment plan.
Treatment Options
Most skin cancers can be removed in a simple outpatient procedure with local anesthetic. Depending on the type, size, and location, treatment may include:
- Freezing: Liquid nitrogen destroys small, early growths on the skin’s surface.
- Excision: The growth is cut out along with a small margin of healthy skin, then closed with stitches.
- Laser therapy: A focused beam of light removes certain very shallow skin cancers.
- Mohs surgery: Thin layers are removed and checked under a microscope one at a time, sparing as much healthy tissue as possible. We often use it on the face and other delicate areas.
Because our team includes a fellowship-trained Mohs surgeon, patients can go from screening to advanced treatment without leaving the practice.
Why Early Detection of Skin Cancer Matters
Skin cancer detection is most effective when it happens early. When melanoma is found early, the 5-year survival rate is about 99%. Early detection also means:
- Simpler treatment
- Less tissue removed
- Smaller scars
- A faster recovery
Regular exams also create a baseline. When your dermatologist knows what your skin looked like last year, they can spot even subtle changes more easily.
How to Protect Your Skin in Utah
Checking your moles is only half of the picture. Preventing sun damage lowers your risk of new skin cancers. Utah’s altitude means stronger UV rays, and snow can reflect up to 80% of UV light back onto your skin. That makes sun protection a year-round habit here.
- Wear a broad-spectrum sunscreen with SPF 30 or higher every day.
- Reapply at least every 2 hours outdoors, and after swimming or sweating.
- Seek shade between 10 a.m. and 4 p.m., when UV rays are strongest.
- Wear a wide-brimmed hat, sunglasses, and protective clothing.
- Skip tanning beds entirely.
Schedule Your Skin Cancer Screening
Wasatch Dermatology is a leading provider of skin cancer screenings in Ogden, with more than 40 years of family care in the community. Led by board-certified dermatologists, our team offers everything from routine full-body skin exams to advanced skin cancer treatment, all under one roof.
If you have a suspicious mole, a spot that will not heal, or simply want peace of mind, we are here to help. We proudly serve patients in Ogden, South Ogden, Harrisville, West Haven, Roy, Clinton, Layton, Clearfield, and throughout Weber County, UT. Call (801) 475-5210 to schedule your skin cancer screening today.
Frequently Asked Questions
How often should I get a full-body skin exam?
Many dermatologists recommend a yearly exam for adults, especially those with higher risk factors. Your dermatologist may suggest more frequent visits if you have a history of skin cancer or many unusual moles.
Can a mole turn into skin cancer?
Yes. While most moles stay harmless, melanoma can develop in an existing mole. It can also appear as a new spot on the skin that looked normal before.
Is a new mole in adulthood always a concern?
Not always. Still, new moles after age 30 are less common and worth watching. Have a dermatologist check any new spot that grows or changes.
Does a skin biopsy hurt?
Most patients feel only a quick pinch from the numbing injection. The biopsy itself takes just a few minutes, and the area usually heals within 1 to 2 weeks with basic wound care.
Should I have a mole removed just to be safe?
Not usually. Most moles are harmless, and removing every one is not necessary. Your dermatologist may recommend removal if a mole shows warning signs, changes over time, or gets irritated by clothing or shaving.
