When to See a Dermatologist for a Suspicious Mole

A mole may seem harmless, but it can sometimes signal something more serious. Knowing when to seek professional evaluation is key to catching skin cancer, including melanoma, in its earliest and most treatable stage. 

At Westchester Cosmetic Dermatology, we help patients in Westchester and Scarsdale understand what to look for and when to act.

Why Monitoring Your Moles Matters

Most moles are benign, but changes in shape, color, or size can indicate abnormal cell growth. Regular self-exams and annual skin cancer screening appointments are essential for early detection and prevention. Identifying changes early dramatically improves treatment outcomes, particularly for aggressive forms like melanoma skin cancer.

Warning Signs of a Suspicious Mole (The ABCDEs)

The ABCDE method is a simple, effective way to evaluate a suspicious mole:

• A – Asymmetry: One half looks different from the other.
• B – Border: Edges are irregular, notched, or blurred.
• C – Color: Uneven tones or multiple colors.
• D – Diameter: Larger than six millimeters (about the size of a pencil eraser).
• E – Evolving: Any change in size, shape, color, or behavior, such as itching or bleeding.

Any of these signs is a reason to schedule a mole check with a dermatologist.

Other Signs You Shouldn’t Ignore

Not all problematic moles follow the ABCDE rule. Persistent itching, bleeding, crusting, or sores that don’t heal should be evaluated. Moles that suddenly appear after age 30 or look noticeably different from others, known as “ugly duckling” moles, also warrant attention.

For more on proactive care, read our post on routine skin examinations.

When to Schedule a Dermatology Visit

Don’t wait until a mole becomes concerning. If you notice any of the signs above—or if you’re unsure—it’s best to see a Westchester dermatologist for a full evaluation. Those with a personal or family history of skin cancer, frequent sun exposure, or many moles should have regular skin cancer screening exams.

For additional guidance, see our article on when to see a dermatologist.

What Happens During a Mole Evaluation?

A dermatologist will perform a full-body visual exam, using a dermatoscope to inspect any suspicious moles more closely. If needed, a biopsy will be done to determine if the mole is cancerous. At Westchester Cosmetic Dermatology, we’re experienced in diagnosing and treating different types of skin cancer, including melanoma, basal cell carcinoma, and squamous cell carcinoma.

We also offer advanced dermatology procedures, including Mohs surgery when precise removal is necessary.

Why Choose Westchester Cosmetic Dermatology

Our practice combines clinical expertise with personalized care in a professional, compassionate setting. As a leading Westchester dermatologist, Dr. David Kriegel brings decades of experience diagnosing and treating skin cancer.

In 2024, Dr. Kriegel was selected by his peers as an outstanding practicing doctor in New York. After an extensive nomination and research process conducted by MSP Communications, the honor was published in New York Super Doctors and featured in the May 4, 2025 issue of The New York Times Sunday Magazine. This recognition reflects his leadership, expertise, and patient trust.

If you’ve noticed a changing mole or simply want peace of mind, don’t wait. Schedule your consultation today for a thorough skin check with a trusted expert.