Sunspots: Causes, Prevention and Treatment Options

At Advanced Dermatology, P.C., our board-certified dermatologists specialize in diagnosing and treating sunspots, which are dark patches caused by long-term UV exposure. Our team offers individualized, evidence-based skin discoloration treatment plans at more than 40 locations in NY & NJ, designed specifically to restore even, healthy-looking skin.

What Are Sunspots?

Sunspots, also called solar lentigines, are flat, brown or tan spots or patches that form on skin that has been repeatedly exposed to the sun. They develop when UV rays cause the skin to overproduce melanin, the pigment that gives skin its color. Over time, that extra melanin builds up in clusters and creates the dark spots you see on the surface.

Sunspots differ from moles or raised lesions in that they are always flat and located at the skin’s surface. While benign and posing no health risk, they are a significant cosmetic concern for many people. They can make the skin appear older, uneven or more damaged, which contributes to their frequency as a dermatological complaint.

Rarely, sunspots may mimic other pigmentation issues or signal early skin changes, so proper evaluation is recommended.

Symptoms and Appearance

Sunspots are usually easy to recognize. They are flat, oval-shaped patches that can range in color from light tan to dark brown or black. They can be as small as a freckle or as large as a centimeter across. You will most often find them on parts of the body that get the most sun: the face, the backs of the hands, the forearms, the shoulders and the chest.

Sunspots do not hurt, itch or bleed, and their texture does not change. They have clear, defined edges and lie flat against the skin. If a spot becomes raised, develops uneven borders, changes color quickly or starts to bleed, see a dermatologist right away. Those can be signs of something more serious.

What Causes Sunspots?

Sunspots are caused mainly by years of exposure to ultraviolet (UV) radiation from the sun or tanning beds. But UV rays are not the only factor. Research published in Scientific Reports found an association between air pollution and the development of sunspots on the face, suggesting that environmental exposure also plays a role.

UV Radiation and Melanin Production

When UV rays hit the skin, they trigger cells called melanocytes to produce melanin as a form of protection. Over time, some of those cells become overactive and start producing melanin unevenly.

The Skin Cancer Foundation reports that people who use SPF 15 or higher sunscreen every day show 24% less skin aging than those who do not, which shows just how much daily sunscreen matters.

Who Is Most at Risk?

Anyone can develop sunspots, but some people are more likely to get them. People with fair skin have less natural protection against UV rays and tend to be more susceptible. So are people who have had frequent sunburns, work outdoors or use tanning beds.

Sunspots are more common in older adults because of decades of sun exposure, but they can appear in people as young as their 30s. Having a family history of sunspots or living in a high-altitude or high-UV area can also raise your risk.

Sunspots vs. Other Pigmentation Conditions

Sunspots are easy to confuse with other types of skin discoloration. Knowing the difference matters because each condition responds to different treatments.

Age spots, also called liver spots, are the same thing as sunspots. The terms are used interchangeably. Freckles are different: they are smaller, tend to fade in winter and are more common in children. They are also driven more by genetics than by years of sun exposure.

Melasma appears as larger, blotchy patches on the face and is usually triggered by hormonal changes, such as pregnancy or birth control use. It tends to be more spread out and symmetrical than sunspots.

Post-inflammatory hyperpigmentation (PIH) is the dark discoloration that can appear after skin trauma, such as acne, eczema or a cut. It can get worse with sun exposure but is not caused by UV rays the same way sunspots are. A dermatologist can examine your skin and tell you exactly which condition you have so you can get the right treatment.

When Should You See a Dermatologist?

Most sunspots are harmless and do not need medical treatment. That said, it is important to have any new or changing spots evaluated by a dermatologist. See one promptly if a spot grows quickly, has an uneven or irregular border, contains more than one color, feels raised or rough or starts to itch or bleed. These can be signs of early melanoma or another form of skin cancer.

Treatment Options for Sunspots

At Advanced Dermatology, P.C., we offer a full range of cosmetic dermatology treatments to fade or remove sunspots. The best option for you will depend on your skin type, how deep the pigmentation is and the results you are looking for. Many patients get the best outcome by combining two or more approaches.

Topical Lightening Agents (Hydroquinone, Retinoids)

For mild to moderate sunspots, prescription creams are often the starting point. Hydroquinone is one of the most widely used lightening agents. It works by slowing melanin production, gradually fading the spots.

Retinoids, which are derived from vitamin A, speed up skin cell turnover and help bring fresher, more even-toned skin to the surface. Both treatments are used for weeks to months and are typically paired with a daily sunscreen to keep spots from coming back.

Chemical Peels

Chemical peels use acids, such as glycolic acid or salicylic acid, to remove the outer layers of skin. This takes away the pigmented surface cells and encourages new, more even-toned skin to grow in their place. Lighter peels work well for mild spots, while stronger peels can tackle more stubborn or deeper discoloration. A series of treatments is usually recommended for the best results.

Laser Therapy (KTP, YAG, Fraxel)

Laser treatments are one of the most effective ways to remove sunspots. KTP lasers and YAG lasers target melanin directly, breaking up pigment clusters while leaving the surrounding skin unaffected.

Fraxel laser resurfacing works differently: it creates tiny treatment zones across the skin to stimulate collagen production and accelerate the removal of pigmented cells. Most patients need more than one session, and results continue to improve in the weeks after each treatment as the body naturally clears the broken-down pigment.

IPL (Intense Pulsed Light)

IPL therapy uses pulses of broad-spectrum light to target melanin in the skin. Unlike lasers, which work with a single wavelength, IPL uses multiple wavelengths at once, making it a good option for treating sun damage spread across a larger area. It works especially well on the face, chest and hands. Most patients need three to five sessions, spaced a few weeks apart. After each treatment, spots may darken briefly before flaking off, revealing clearer skin.

Cryotherapy

Cryotherapy uses liquid nitrogen to freeze individual sunspots, which destroys the pigmented cells. It is a quick in-office procedure that works best for a small number of isolated spots. The treated area may blister or scab briefly before healing, revealing lighter skin. It is an affordable option that can also be combined with other treatments for more complete results.

Prevention: How to Stop New Sunspots from Forming

The best way to prevent sunspots is to protect your skin from UV exposure every day. Apply a broad-spectrum SPF 30 or higher sunscreen every morning, even when it is cloudy or you plan to be mostly indoors, since UV rays can pass through windows. Reapply every two hours when you are outside.

Try to stay out of the sun between 10 AM and 4 PM, when UV rays are strongest and wear a wide-brimmed hat, UV-blocking sunglasses and protective clothing. Avoid tanning beds completely. Adding a vitamin C serum to your routine can also help protect against UV damage. Annual skin exams let your dermatologist keep an eye on existing spots and catch anything new early.

Frequently Asked Questions

Can sunspots turn into skin cancer?

Sunspots themselves are not cancerous and do not turn into skin cancer. However, having them means your skin has taken on significant UV damage over time, which is a known risk factor for skin cancer. It is also possible for an early melanoma to be mistaken for a harmless sunspot. That is why any spot that changes in size, shape, color or texture should be checked by a dermatologist.

How many treatments does it take to remove sunspots?

It depends on the treatment and how deep the pigmentation is. Topical creams may take several weeks to months of daily use. Laser therapy, IPL and chemical peels typically require two to six sessions. Your dermatologist will put together a plan tailored to your skin type and goals.

Do sunspots come back after treatment?

Yes, sunspots can come back if your skin is exposed to UV rays without protection. Wearing SPF 30+ sunscreen daily, covering up and avoiding peak sun hours are the most important things you can do to maintain your results. Patients who stay consistent with sun protection tend to see longer-lasting outcomes.

What is the fastest way to remove sunspots?

Laser therapy tends to produce the fastest results, often with noticeable improvement after just one or two sessions. IPL is also a strong option for widespread pigmentation. The best way to find out which treatment is right for you is to schedule a consultation with one of our dermatologists.

Can I treat sunspots at home?

Yes, to some extent. Over-the-counter products with ingredients such as vitamin C, niacinamide or kojic acid can gradually fade mild spots. But they are much weaker than prescription treatments or professional procedures. For more noticeable or stubborn spots, professional treatment will get you much better results. It is also worth having a dermatologist confirm what you are dealing with before you start treating it, since other conditions can look similar to sunspots.

Treat Sunspots at Advanced Dermatology, P.C.

Ready to do something about your sunspots? The team at Advanced Dermatology, P.C. is here to help. We have 40+ locations across New York and New Jersey, with same-day appointments available. Book your consultation at a location near you today.