Increased Mole Count: What Causes This Sudden Appearance?
Hey there! Wanna know the lowdown on those new moles cropping up on your skin? Let's dive in!
We're still figuring out exactly why moles appear in adulthood, but it's likely due to a blend of genetics, sun damage, and other factors like hormonal shifts. That's right, even supermodels like Cindy Crawford and Eva Mendes have experienced this mole madness (told ya, you're in good company!).
Now, since moles can sometimes be a sneaky indicator of certain skin cancers, it's crucial to keep your eyes peeled for any changes. Here's the skinny on the different types of moles you might encounter, as well as potential risks and when to seek help from a dermatologist.
Mole Types and Risks
Congenital Moles
Born with these babies? Congenital moles vary in size, shape, and color, with approximately 0.2% to 2.1% of infants coming into this world with one. Treatment for cosmetic purposes is often an option, such as surgery, dermabrasion, skin shaving, chemical peels, or laser ablation. However, large congenital moles are more likely to turn malignant and should be monitored by a dermatologist if they grow significantly or change since childhood.
Acquired Moles (aka Common Moles)
Common moles pop up after birth and can appear anywhere on your skin. Fair-skinned individuals tend to have up to 40 of these moles, while those with darker skin will notice darker-colored ones. These moles can sometimes become a skin cancer risk, especially if you have over 50 of them. If you've got acquired moles or they've changed in size or appearance, be sure to schedule a derm checkup.
Atypical Moles (aka Dysplastic Nevi)
Atypical moles can develop anywhere on the body, but not on the face. They're more common in people with fair skin and a history of sun exposure. These moles may have irregular shapes, various colors, bigger sizes, and other features—some of which are similar to melanoma. About 1 in 10,000 atypical moles transform into melanoma each year, so regular skin checks are essential for monitoring their changes.
Melanoma: The Skinny on Skin Cancer
Melanoma is the most dangerous type of skin cancer, but don't fret—it's highly treatable when spotted early. You're at a greater risk of melanoma if:
- You have five or more atypical moles.
- A blood relative has had melanoma.
- You've had melanoma before.
Those with familial atypical multiple mole melanoma (FAMMM) syndrome have a 10.7% 10-year risk of melanoma—17.3 times higher than the general population. Book regular skin checks if you're in this boat.
Now, let's talk about why new moles might be popping up and what that means for you.
Why Do New Moles Appear?
Though we don't have all the answers, here are some potential factors for benign and cancerous moles:
Genetics and Family History
If your family tree is filled with moles, you might be genetically blessed (or cursed, depending on how you look at it). People with fair skin, light, or red hair are more likely to have more moles. Researchers also discovered the BRAF gene mutation exists in 78% of benign moles, as well as those that turn into melanoma.[1]
Sun Exposure
Whether it's past sun exposure, tanning beds, or sunburns, excessive sun exposure can result in tons of acquired moles. Remember, sunscreen is your friend! It can help protect your skin from harmful UV rays.
Suppressed Immune System
Certain medications can cause moles, especially those that suppress the immune system. Patients who receive immunosuppressant drugs after an organ transplant, for example, have a higher risk of skin cancer.
Hormonal Changes
Researchers speculate a link between hormonal shifts and moles, particularly during puberty, pregnancy, or menopause. Even so, the exact relationship is still unknown.
Should You Worry About New Moles?
Anytime a mole you've had forever changes shape or color, or a new mole appears, it's important to consult a dermatologist. If your mole itches, bleeds, oozes, or hurts, get that appointment booked ASAP.
New moles are more likely to become cancerous than ones you've had for life, but 71% of melanomas do not develop from a mole.[3] Melanoma can also appear in less obvious areas, such as the soles of feet, palms, or in between fingers and toes.
- If you have recently noticed a new mole on your skin, it's essential to keep track of any changes in its shape or color, as new moles might indicate certain skin cancers, such as melanoma.
- With congenital moles, which you may have been born with, it's recommended to consult a dermatologist if the mole grows significantly or changes since childhood, as they are more likely to turn malignant.
- Even if you don't have any history of skin cancers, new moles can appear in less obvious areas, such as the soles of feet, palms, or in between fingers and toes, making regular skin checks important for early detection and treatment of melanoma.
