Hipsters beware, your sexy, trendy top-knot bun could be making you go bald.

Scientists refer to a specific hair condition called "traction alopecia," which is baldness on the forehead and temples caused by extended pulling of the hair.

"They're putting traction on the hair follicles that the hair is not really meant to take," dermatologist Sabra Sullivan told Mic. "Traction alopecia in men is becoming more common."

Apparently this is nothing new and researchers, scientists and hair health experts have been warning people to not pull their hair back so tight. 

According to experts, "any hairstyle that creates overly tight hair pulling, regardless of gender, could produce irreversible long-term consequences," Mic stated. "Once you damage the hair follicle, it will not grow back," said Dennis Zuniga, a high-end stylist at New York's Donsuki Salon.

But not all hope is lost. 

You can still have your man bun — just don't pull it back so tight!

Matt Lee is a Web producer for Metro New York. He writes about almost everything and anything. Talk to him (or yell at him) on Twitter so he doesn’t feel lonely @mattlee2669.