A skin cancer screening is a visual examination of your entire body’s skin, performed by a dermatologist or trained clinician, to check for moles, growths, or other spots that could be cancerous or precancerous. The exam itself is quick, typically lasting 10 to 15 minutes, and involves no blood work, imaging, or pain. It’s one of the simplest medical screenings you can get, and it can catch skin cancers early enough to make treatment straightforward.
What Happens During the Exam
You’ll change into a gown, and the doctor or nurse will systematically examine your skin from your scalp to the soles of your feet. They’re looking at every mole, birthmark, and pigmented area, evaluating each for abnormalities in color, size, shape, and texture. The exam covers areas you’d never think to check yourself: your scalp, behind your ears, between your toes, and under your nails.
Many dermatologists use a handheld tool called a dermatoscope, which shines a light on the skin and magnifies it tenfold. This lets the clinician see structures beneath the surface that aren’t visible to the naked eye. Dermatoscopy improves diagnostic accuracy, helps distinguish harmless spots from suspicious ones, and reduces the number of unnecessary biopsies. If your doctor spots something worth a closer look, they’ll typically pause and spend extra time examining that area with the dermatoscope before deciding on next steps.
What Doctors Are Looking For
For melanoma, the most dangerous form of skin cancer, clinicians use a set of five visual markers known as the ABCDE criteria:
- Asymmetry: one half of the mole doesn’t match the other
- Border: edges are ragged, notched, or blurred, sometimes with pigment spreading into surrounding skin
- Color: uneven shades of black, brown, tan, or unexpected colors like white, gray, red, pink, or blue
- Diameter: larger than about a quarter inch (6 millimeters), though melanomas can sometimes be smaller
- Evolving: the mole has changed in size, shape, or color over recent weeks or months
But melanoma isn’t the only thing on the radar. Basal cell carcinoma, the most common skin cancer, often appears as a slightly transparent or pearly bump. On lighter skin, it tends to look skin-colored or pink. On brown and Black skin, it often appears as a brown or glossy black bump with a rolled border. It can also show up as a flat, scaly patch that grows over time, a white waxy scar-like area, or simply a sore that won’t heal. Tiny blood vessels may be visible on the surface. Your doctor is trained to recognize all of these variations.
How to Prepare
Preparation is minimal, but a few small steps help your doctor see your skin clearly:
- Come with clean skin, free of lotions, creams, or oils
- Skip makeup and nail polish if possible, since skin cancer can develop under nails or in areas makeup would conceal
- Deodorant is fine
- Wear loose, comfortable clothes since you’ll change into a gown
Before the appointment, it helps to do your own scan at home and note any spots that have changed, appeared recently, or seem unusual. Your doctor will examine everything regardless, but pointing out your own concerns ensures nothing gets overlooked and gives the clinician useful context about how long a spot has been there or how it’s changed.
Who Should Get Screened
Anyone can develop skin cancer, but certain factors raise your risk significantly. The CDC identifies these high-risk characteristics: lighter natural skin color, skin that burns or freckles easily, blue or green eyes, blond or red hair, a large number of moles or unusual moles, a history of sunburns or tanning bed use, a family history of skin cancer, a personal history of skin cancer, and older age.
If you have several of these risk factors, annual screenings are a reasonable starting point. People with a personal history of skin cancer or a large number of atypical moles may need exams every six months. If you’re at average risk with none of these factors, there’s no universal guideline mandating a specific schedule. The American Academy of Dermatology encourages screenings but hasn’t set a formal frequency recommendation. A practical approach is to get a baseline exam in your 20s or 30s and let your dermatologist recommend a follow-up schedule based on what they find.
What Happens If Something Looks Suspicious
If your doctor identifies a spot that needs further evaluation, the next step is a biopsy, where a small sample of skin is removed and sent to a lab. There are three main types, and which one you get depends on the size and location of the spot and what the doctor suspects.
A shave biopsy is the most common. The doctor uses a thin blade to remove a sample from the top layers of skin, then applies pressure or a topical agent to stop the bleeding. No stitches are needed. A punch biopsy uses a small circular tool, about the size of a pencil eraser, to remove a deeper sample. This may require one or two stitches. An excisional biopsy is used when melanoma is suspected. A surgeon removes the entire lesion with a scalpel and closes the site with stitches, ensuring all the suspicious tissue is captured.
All three are done with local anesthesia and are outpatient procedures. Results typically come back within one to two weeks. Most biopsied spots turn out to be benign, but when something is caught early, the outcome is dramatically better. Early-stage melanoma has a five-year survival rate above 99 percent.
Cost and Insurance Coverage
Insurance coverage for skin cancer screenings varies and can be confusing. Most health plans, including Marketplace plans, are required to cover a set of preventive services at no cost when you use an in-network provider. However, skin cancer screening occupies a gray area. The U.S. Preventive Services Task Force has not issued a recommendation for or against routine screening in the general population, which means insurers aren’t universally required to cover it as a free preventive service the way they cover, say, colonoscopies or blood pressure checks.
In practice, many insurers do cover an annual skin exam, especially if you have documented risk factors or a referral from your primary care doctor. If a screening leads to a biopsy, that’s typically coded as a diagnostic procedure and may be subject to your deductible or copay. Before scheduling, call your insurance company and ask specifically whether a “full-body skin exam” or “skin cancer screening” is covered, and whether you need a referral. If you’re uninsured, the American Academy of Dermatology sponsors free screening events throughout the year.