Man buns, otherwise known as topknots that men with long hair wear, might look cool to some people, but a university in Idaho disagrees.

Administrators of the Brigham Young University (BYU) in Idaho have effectively outlawed the "extreme" hairstyle, because it believes that it goes against the Honor Code of the school. The Honor Code of BYU states that men should sport hairstyles that are "clean and neat, avoiding extreme styles of colors and trimmed above the collar leaving the ear uncovered," as outlined in its dress code section.

"It's just something that deviates from the norm," said Tyler Barton from the school's Student Honor Administration, according to Boise Weekly.

"As part of the dress and grooming code, we commit to avoid extreme hairstyles," said Kevin Miyasaki, Student Services & Activities Vice President, according to BYU Scroll, the university's school paper. "A 'man-bun' would be considered not consistent with this standard," Miyasaki added.

The school authorities started to take notice of this hairstyle last year, and have reported students, including women wearing their hair in a bun, at the Student Honor office, the school paper reported.

Miyasaki believes that the employees and students of BYU support the call to ban the hairstyle this school year in their "commitment to comply with the Honor Code."

The move could prove helpful for men, though, as a recent study suggested topknots might cause traction alopecia that could lead to baldness, according to Huffington Post. "They're putting traction on the hair follicles that the hair is not really meant to take," said Sebra Sullivan, a dermatologist, via Mic. "Traction alopecia in men is becoming more common."

Pulling the hair can bring about long-term effects that can never be corrected. "Once you damage the hair follicle, it will not grow back," said Dennis Zuniga.