If you’ve recently noticed a new spot on your skin or are considering removing a mole you’ve had for a long time, it’s helpful to understand what the process involves. Knowing how moles develop, what they are, and how they’re treated can make the experience feel more manageable from start to finish.
What Exactly Is a Mole?
A mole form is essentially a grouping of skin cells that can develop anywhere on the body. Many people simply describe moles as dark spots or irregular marks on the skin. Common forms include birthmarks, hemangiomas, and keratoses.
Most moles develop before the age of 20, although they tend to be more noticeable as people grow older. On average, a person may have between 30 and 40 moles, but in some cases, individuals can have hundreds. Generally, moles are harmless. However, if you notice one that looks unusual or stands out compared to others, it’s important to have it checked by a dermatologist promptly for cosmetic mole removal.
Why Do Moles Form?
Moles can appear for a variety of reasons. Genetics often play a major role—some people inherit a tendency to develop more moles, including atypical ones. These individuals may also have a higher risk of melanoma.
Sun exposure is another key factor. Spending long periods in the sun without protection can trigger the formation of new moles or cause existing ones to change. In some cases, this can lead to abnormal or potentially cancerous growths.
Should You Be Concerned About New Moles?
Most moles and skin tags are harmless, but new or changing ones should not be ignored. This is especially important if there is a family history of skin cancer. A mole that looks different from the rest may require medical attention.
A helpful way to evaluate moles is by using the ABCDE guideline:
Asymmetry: One half doesn’t match the other
Border: Edges appear uneven or blurred
Color: Multiple shades or unusual coloring
Diameter: Larger than a pencil eraser
Evolving: Changes in size, shape, or color over time
If any of these signs are present, it’s best to consult a dermatologist as soon as possible.
How Can You Tell If a Mole Is Cancerous?
The only reliable way to determine if a mole is cancerous is through a professional evaluation. A dermatologist will examine the mole closely and decide if further testing is needed. If there are concerns, the mole may be partially or completely removed and sent for laboratory analysis, known as a biopsy.
If the results confirm cancer, additional treatment may be required. This usually involves removing the entire mole along with some surrounding tissue to ensure all abnormal cells are eliminated.
Methods of Mole Removal
There are several ways to remove moles, depending on their type and location:
Laser Removal: Uses focused light to break down mole tissue, often used for sensitive or hard-to-reach areas.
Punch Removal: A small circular tool is used to cut out the mole from deeper layers of skin.
Shave Removal: The mole is shaved off using a blade or specialized instrument.
Surgical Excision: The mole and a small area beneath it are cut out, and the skin is stitched closed.
Freezing (Cryotherapy): Liquid nitrogen is applied to freeze and remove surface-level, noncancerous moles.
In most cases, mole removal is a quick procedure completed in a single visit. However, if the removal is related to a medical concern, follow-up appointments may be necessary to monitor healing and results.
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