Thongs may or may not always be the most comfortable underwear choice, but sometimes they can certainly serve a purpose. If you're trying to avoid underwear lines, for instance, thongs can be a good option. And for some people, they're the preferred choice no matter the circumstances — they just really do think that thongs are more comfortable. But there are some surprising times you should never wear a thong for reasons ranging from hygiene to injury, infection, and beyond.
"Thong underwear is great if you’re wearing comfortable pants, or a long slinking gown," Dr. Felice Gersh, MD, an OB/GYN and the founder/director of the Integrative Medical Practice of Irvine in Irvine, California, tells Romper by email. "No panty line will show. There actually aren’t any health benefits to a thong, but if you enjoy wearing one, it should be just fine. Just avoid the obvious and less obvious situations when wearing one is a bad idea!"
Knowing when (and why) you shouldn't wear thongs can also inform your knowledge base on when you can or even should wear them. That's why it's so important. If you regularly reflexively reach for a thong without putting much thought into it or consider panty lines or no panty lines the only factor when determining whether or not to wear a thong on a given day, you need to know what other sorts of things might also be important to consider.