The Legging Habit You Need to Ditch, According to a Doctor

Do you wear underwear with workout leggings? We know this question may feel a bit intimate, but here's the thing: It matters. Between hot-button topics like panty lines, naked leggings, and, well, your health "down there," revisiting your activewear undergarment choices is actually important. So we tapped a gynecological expert to fill us in: Is there a right or wrong choice when it comes to leggings and underwear?
"The answer to this has more to do with comfort than any gynecologic risk," says Sara Twogood, MD, an assistant professor of clinical obstetrics and gynecology at USC's Keck School of Medicine. "Depending on seams or material, not wearing underwear may chafe."
In addition, Twogood notes that moisture due to sweat and general body function are important to factor in, especially if you're wearing leggings for something more active. "If the genital region is constantly moist due to wearing non-breathable material, this increases the risk for a yeast infection. It may also increase odor (and although odor is probably normal under these circumstances, it may be bothersome to the woman)."
Twogood's recommendation is to choose cotton underwear to allow for maximum breathability. And if you're partial to going without underwear, make sure to wash your leggings frequently to avoid odor and possible infection.
Now that you know, read on to shop leggings for whatever activity is on your agenda.
Channel Bella Hadid, and pair these with a matching sports bra.
We love the mesh stripes. Want more? This is hte controvesial trend you need to try!

-
Sure, Black Leggings Are Timeless, But This Colored Alt Is What Fashion People Are *Actually* Wearing in 2025
Kendall Jenner is one.
-
8 Non-Dated Ways People Are Wearing Leggings Right Now
How to style them the 2025 way.
-
The Fall Shoe Trend Everyone in Paris Is Wearing With Black Leggings to Runway Shows and Dinners at Chez Janou
Hint: It's not sneakers or ballet flats.
-
These Loafers Have Had a Cult Following for 70 Years, But in 2025, You'll Only See Them Styled Like This
Bella Hadid gets it.
-
According to It Girls, You Should Only Wear Skinny Jeans If It's This Trend With These Shoes
Confirmed by Bella Hadid in Paris.
-
Hold the Leggings—This Is What Cool Dressers Are Actually Wearing With Ugg Boots These Days
As seen on Gigi Hadid, the cool-dresser poster child.
-
Bella Hadid Just Wore 2026's Biggest Accessories Trend in Paris
It girl approved.
-
Forget Fleeces and Hoodies—This Is the It-Girl Jacket to Wear With Plain Leggings
It's taken over by storm.