8 doctors weighed in:

How does skin cancer begin?

8 doctors weighed in
Dr. Mike Bowman
ENT - Head & Neck Surgery
4 doctors agree

In brief: Sun damage

With rare exception, most skin cancers are caused by sun damage.
Any new skin bump which is new, enlarging, and changing is concerning. The older you are, and the more sun exposure you have had, the higher the risk of skin cancer. Melanomas risk is remembered as abcd: asymmetry, irregular borders, irregular coloration, diameter >6mm. If in doubt, have it check out by your doctor.

In brief: Sun damage

With rare exception, most skin cancers are caused by sun damage.
Any new skin bump which is new, enlarging, and changing is concerning. The older you are, and the more sun exposure you have had, the higher the risk of skin cancer. Melanomas risk is remembered as abcd: asymmetry, irregular borders, irregular coloration, diameter >6mm. If in doubt, have it check out by your doctor.
Dr. Mike Bowman
Dr. Mike Bowman
Thank
Dr. Joseph Eastern
Dermatology
2 doctors agree

In brief: Ultraviolet light

Uv light (from the sun or tanning booths) is responsible for inducing the most common forms of skin cancer (basal cell carcinoma and squamous cell carcinoma), and probably most melanomas.
However there are other causes, since skin cancer can occur in non-sun-exposed areas as well. By applying a good sunscreen lotion daily and staying away from tanning booths, you can prevent most skin cancers.

In brief: Ultraviolet light

Uv light (from the sun or tanning booths) is responsible for inducing the most common forms of skin cancer (basal cell carcinoma and squamous cell carcinoma), and probably most melanomas.
However there are other causes, since skin cancer can occur in non-sun-exposed areas as well. By applying a good sunscreen lotion daily and staying away from tanning booths, you can prevent most skin cancers.
Dr. Joseph Eastern
Dr. Joseph Eastern
Thank
Dr. Coyle Connolly
Dermatology

In brief: Skin cancer

Clinically, a small skin cancer starts as a small non healing patch or growth.
Others start as as a changing or new mole that is typically but not always asymmetrical, irregular bordered , different colors, size larger than a pencil head eraser or that itches bleeds. See a dermatologist for a skin exam yearly or whenever a suspicious area develops.

In brief: Skin cancer

Clinically, a small skin cancer starts as a small non healing patch or growth.
Others start as as a changing or new mole that is typically but not always asymmetrical, irregular bordered , different colors, size larger than a pencil head eraser or that itches bleeds. See a dermatologist for a skin exam yearly or whenever a suspicious area develops.
Dr. Coyle Connolly
Dr. Coyle Connolly
Thank
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