Moles (Nevi)
Moles are very common skin features that almost everyone has. They come in many shapes, sizes, and colors, often appearing during childhood and adolescence. While the vast majority of these marks are harmless, keeping track of them and knowing what to look for is an essential part of lifelong skin health.
What is a Skin Mole (Nevus)?
A skin mole (nevus) is a common growth on the skin that occurs when melanocytes (pigmented cells) grow in clusters rather than spreading out evenly. Moles can be flat or raised, and they range in color from pink or tan to dark brown or black.
Most people have moles, with some individuals having more than others. The majority of moles are benign, however a small number can be atypical, and in rare cases, may develop into melanoma.
Moles can change slowly over time, but when a mole is changing quickly this can be cause for concern. It’s important to have a baseline skin exam, even if you think your moles are normal. Any changing mole should be evaluated by a dermatologist.
Expert Opinion
Living in Denver’s high-altitude environment means residents experience significantly increased UV exposure. This intense sun exposure makes routine skin checks at Core Dermatology essential to ensure your moles remain healthy and benign.
How to Identify a Suspicious Mole: The ABCDE Guide
According to the American Academy of Dermatology, dermatologists use the ABCDE rule to distinguish normal moles from potentially cancerous ones.
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A – Asymmetry: One half does not match the other.
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B – Border: Edges are irregular, ragged, or blurred.
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C – Color: The color is not the same all over (shades of brown, black, red).
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D – Diameter: The spot is larger than 6 millimeters (the size of a pencil eraser).
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E – Evolving: The mole is changing in size, shape, or color.
What Causes Moles to Develop or Change?
The formation and ongoing changes of moles are primarily driven by three key biological and environmental factors:
- Genetics: Heredity plays a major role in the number of moles a person develops.
- Sun Exposure: UV radiation stimulates melanocyte production, causing new moles to form or existing ones to change.
- Hormonal Changes: Pregnancy or puberty can cause moles to darken or grow.
Does Denver’s Climate Affect Moles?
Colorado boasts over 300 days of sunshine a year. This consistent, high-altitude UV exposure makes sun-induced mole changes a primary concern for our local patients.
If you notice any “Evolving” signs, we urge Denver residents to schedule an annual full-body skin exam with a board-certified dermatologist immediately.
Mole Removal and Treatment Options
Shave Biopsy is a standard procedure used for raised moles. After numbing the area, the dermatologist uses a sterile surgical blade to shave the mole flush with the surrounding skin. This sample is then sent to a lab for pathology testing.
Surgical Excision is required for precancerous moles. In this procedure, the doctor cuts out the entire mole and a small margin of healthy surrounding tissue. The skin is then carefully stitched closed, ensuring the entire lesion is removed.
Any mole that appears clinically suspicious requires biopsy and pathology evaluation to rule out skin cancer. While all procedures carry some risk of scarring, careful biopsy techniques and clinical experience help minimize this risk. At our Denver office, Core Dermatology provides expert mole evaluation and removal, with all specimens reviewed by board-certified dermatopathologists for accurate diagnosis.
Frequently Asked Questions (FAQ) About Moles
When should I worry about a new mole?
You should worry about a new mole if it appears after age 30, bleeds, itches, or changes shape and color. Any mole that looks significantly different from your other moles (the “ugly duckling” sign) should be evaluated by a dermatologist for a skin cancer screening.
Does mole removal leave a scar?
Yes, any skin procedure leaves a small mark. Shave biopsies typically heal flat and blend in, while surgical excisions leave a faint line that fades significantly over time.
How much does mole removal cost in Denver?
The cost of mole removal in Denver varies based on the method and insurance. Medically necessary removals for suspicious moles are typically covered by insurance, though you may still be responsible for a copay if your deductible has not been met.