7 Times You Should Never, Ever Wear Flip-Flops

Those laid-back little numbers can play havoc on your feet.

— -- intro:It doesn’t take a whole lot to get psyched for summer—especially after the winter most of the country has just had. But maybe one of the best reasons to welcome the warm days ahead is being able to release our feet from the bondage of bulky boots and toe-cramming stilettos and slide into summer’s go-to shoe: flip-flops.

But hedonists, beware: Those laid-back little numbers can play havoc on your feet. And, for that matter, your face.

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Burned by rubber. Why are we not surprised? Let’s face it: We’ve all gotten a little too, well, comfortable with this flimsy footwear. Originally designed to be worn at the beach and neighborhood pool, or on leisurely neighborhood strolls, flip-flops have been showing up pretty much everywhere. Call it the “Minimalist Movement.”

Those things are more a matter of fashion sense—or lack thereof. But here is where things get kind of dicey: “I can remember walking up a steep mountain in California and seeing other climbers wearing flip-flops, and falling out of them,” says Corinne Kauderer, MD, a Brooklyn-based board-certified podiatrist and former president of the American Association for Women Podiatrists (AAWP).

The Grand Canyon? Seriously, people?? OK, clearly it’s time for an intervention. Here are (at least) seven situations when you should never, ever wear flip-flops:

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quicklist: 2category: title: Cruising the Interstateurl:text:Not the thing to be wearing when quick reflexes are required. “It’s all to easy for flip-flops to slip off your feet and lodge under the brake or gas pedal,” says Dr. Megan Leahy, DPM, from the Illinois Bone & Joint Institute.

Hiking, running after kids—or, merely running (right, Brad?)Flip-flops can turn even the most agile person into a complete klutz. Why: Basically, the only thing holding those rubber soles on your feet is a thin strip of rubber or leather that fits between your first and second toe (known in the fashion trade as a “toe plug”) and 10 clenched toes. According to a 2008 Auburn University study, that leads to shorter strides, which can up the odds that you’ll be kissing pavement. More scariness: “Changing your gait can lead to problems with your spine, hips, knees and ankles down the road,” says Dr. Leahy.

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quicklist: 3category: title: Doing yardworkurl:text:Lawn mowers, weed whackers…enough said. Unless you’re looking for colorful cocktail party chitchat about how you lost two of your toes, keep your feet covered and out of harm’s way.

Standing behind a cash register or waiting in line at the DMVOK, you may not be feeling the pain now, but trust us, somewhere down the road, you will. “These pancake flat shoes just don’t give you the support or cushioning you need,” says Dr. Kauderer—and that can lead to a lot of different foot problems over time, including plantar fasciitis (an inflammation of tissue on the bottom of the foot), metatarsalgia (pain and inflammation in the ball of the foot), fallen arches, and bone spurs.

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quicklist: 5category: title: A crowded subway or busurl:text:There’s always some lead-footed clod who’s not watching where he’s putting his Wingtips. And flip-flops leave your toes so…exposed.

That doesn’t mean you have to ditch your slap-happy pair, says Dr. Kauderer; just choose your moments carefully. “And if you are planning on wearing them for an extended period of time, look for flip-flops that offer proper support,” she says. Check out this list from the American Podiatric Medical Association (APMA).

One more thing: Don’t forget the sunscreen: All of that exposed skin is susceptible to UV damage.

This article originally appeared on Health.com.