What You Need To Know About Hidden Sun Damage

Every sunburn, every “just a little color" and every long afternoon outside all adds up. That's because your skin essentially keeps a running log of your lifetime sun exposure, says dermatology physician's assistant Lauren Leavitt.

And while a tan might look good in the moment, what’s happening underneath the surface tells a very different story.

“What you can't see is the DNA damage that occurs at a cellular level that can ultimately lead to skin cancer," warns Leavitt. “That's something that we see as a result of just the accumulation of the sun through people's lives.”

And dermatologists say they’re seeing it play out in real time.

Skin cancer isn’t just something that shows up later in life anymore. More people are being diagnosed at younger ages, in part because of increased awareness and screenings.

(MORE: Keep Kids Safe In The Sun)

"The areas that we see the most skin cancer are the face, specifically the nose. In males, the tops of the ears, because they don't always have the long hair that protects their ears," explains Leavitt. "We also see a lot of skin cancer on the chest, as well as the shoulders, upper back, hands."

Basically, if it sees the sun often, it’s an area to keep an eye on.

Here’s the silver lining: Even though skin cancer is incredibly common, it's also very treatable when caught early.

"The best thing that you can do is get skin checks at least annually or based on the recommendations of your dermatology provider," says Leavitt. "There are more treatments than ever."

(MORE: How To Limit Skin Cancer Risk When Working Outside)

If you notice anything new, changing or unusual on your skin, don’t wait for your annual visit. Get it checked sooner.

And if you’re thinking, “Well, I’ve already had plenty of sun in my life,” here’s some reassurance: the damage is not “done.”

"It's never too late to start sunscreen, sun protective measures or to just come in for your first skin check," Leavitt notes.

Dermatologists emphasize that it's always a good time to:

• Start wearing sunscreen regularly
• Add protective habits like hats or sunglasses
• Seek shade during peak sun hours

Sun exposure might feel good in the moment, but your skin is keeping track long after the glow fades. The key is not to panic, but to pay attention.

Check your skin, protect it daily and remember: taking care of your skin now is something your future self will thank you for.

weather.com lead editor Jenn Jordan explores how weather and climate weave through our daily lives, shape our routines and leave lasting impacts on our communities.