For most people at average risk, a monthly self-exam at home and an annual professional skin check is a reasonable starting point, though the exact schedule depends on your personal risk factors. Surprisingly, no major U.S. medical organization has issued a formal recommendation for routine skin cancer screening in people without symptoms or risk factors. The U.S. Preventive Services Task Force currently says there isn’t enough evidence to recommend for or against clinical skin exams in asymptomatic adults. That doesn’t mean skin checks aren’t valuable. It means the right frequency is personal, and understanding your own risk level is the key to getting it right.
What the Guidelines Actually Say
The USPSTF gives skin cancer screening an “I” grade, meaning insufficient evidence to make a blanket recommendation for the general population. This applies specifically to adolescents and adults with no symptoms, no suspicious moles, and no personal or family history of skin cancer. If you fall outside that narrow group, meaning you’ve noticed a changing mole, have a family history, or have other risk factors, this “insufficient evidence” rating doesn’t apply to you at all.
The American Academy of Dermatology doesn’t publish a specific screening interval either, but it actively promotes free public screening events and encourages dermatologists to examine patients’ skin. In practice, most dermatologists recommend an annual full-body skin exam for their patients, adjusting the frequency upward for those at higher risk.
How Risk Factors Change the Schedule
Your ideal screening interval hinges on where you fall on the risk spectrum. Several international cancer organizations have outlined more specific timelines based on risk level:
- Average risk, no concerning features: An annual skin check with a dermatologist is a common baseline, paired with monthly self-exams at home.
- High risk (fair skin, light eyes, red or light hair, many moles, weakened immune system, personal or family history of skin cancer): Every six months for a professional exam, along with total body photography to track changes over time.
- Very high risk (history of melanoma or more than five atypical moles): Self-exams every three months and clinical exams every six months.
- Five or more atypical moles, or 100 or more normal moles: Annual exams at minimum.
- High risk due to genetic factors: One to two dermatologist visits per year.
About 10% of people diagnosed with melanoma have a family history of the disease. If that includes you, the American Cancer Society suggests regular dermatologist exams and monthly self-checks as a baseline, not a ceiling.
Why Frequency Matters
The survival gap between catching melanoma early and catching it late is enormous. When melanoma is found while still localized to the skin, the five-year survival rate is above 99%. Once it has spread to distant parts of the body, that number drops to 35%. Those figures, based on diagnoses from 2015 through 2021, make a strong case for regular monitoring even in the absence of a universal screening mandate.
Melanoma can also recur years after an initial diagnosis. Research tracking early-stage melanoma patients found that the median time between initial treatment and metastatic recurrence was four years. Roughly 46% of recurrences happened within three years, but 12% occurred more than 12 years later, with one case recurring after 24 years. Current guidelines from the National Comprehensive Cancer Network recommend follow-up visits every 6 to 12 months for five years after an early-stage melanoma diagnosis, then annually after that.
How to Do a Monthly Self-Exam
A monthly self-check is one of the simplest things you can do between professional visits. You’re looking for anything new, anything growing, and anything changing. Specifically, watch for:
- A new or expanding growth, spot, or bump
- A sore that bleeds or doesn’t heal after several weeks
- A rough, scaly red patch that may crust or bleed
- A mole that’s changing in size, shape, or color
- A mole with an odd shape, uneven borders, or multiple colors
Use a full-length mirror and a hand mirror to check your back, scalp, and other hard-to-see areas. Don’t skip the places you might not associate with sun damage: the soles of your feet, between your toes, your palms, your nail beds, and your genital area. Skin cancer can develop in all of these spots.
Don’t Skip Non-Sun-Exposed Areas
One type of melanoma, called acral lentiginous melanoma, develops on the palms, soles of the feet, and under the nails. It has nothing to do with sun exposure and occurs equally across all races and skin tones. It accounts for the majority of melanoma diagnoses in people of color, partly because other forms of melanoma (which are linked to UV exposure and fair skin) are less common in this group.
On the hands or feet, it starts as a black or brown discoloration that may look like a bruise or stain but gradually grows. Under a fingernail or toenail, it typically appears as a dark vertical streak running the length of the nail. Over time it can cause the nail to crack or break. It’s often mistaken for a bruise, fungal infection, or blood under the nail, which means it tends to be caught later. Including your nails, palms, and soles in your monthly self-exam is a simple way to avoid that delay.
What Happens During a Professional Skin Check
A full-body skin exam typically takes 10 to 15 minutes. Your dermatologist will start by asking about any skin changes you’ve noticed, including where they appeared and whether they developed suddenly or gradually. You’ll change into a gown, and the doctor will systematically examine your entire body, including your scalp, the inside of your mouth, skin folds, nail beds, and genital area.
The primary tools are the doctor’s eyes and hands. They’ll look at the surface of your skin and feel areas to assess texture, thickness, and tenderness of any spots. A dermatoscope, which is essentially a magnifying lens with a built-in light, lets the doctor examine moles and small lesions in much greater detail than the naked eye allows. A glass spatula may be pressed against the skin to temporarily push blood out of surface vessels, revealing the true color of a lesion underneath. If something looks suspicious, the doctor may recommend a biopsy at that visit or schedule a follow-up.
If you have many moles or are at high risk, your dermatologist may recommend total body photography, where standardized photos of your skin are taken so that any future changes can be compared side by side with a baseline.