Bare-knuckle boxing, once a fringe combat sport, has surged into the mainstream with events like the BKB promotions drawing packed crowds. The BKB's 2025 data shows over 1,000 licensed bouts globally, up from 21 in 2015, reflecting its growing appeal. Fighters like Liam Rees, a two-time light-middleweight champion, face intense risks: his wife urged him to quit after a brutal loss, highlighting the physical toll.

The sport’s shorter rounds and lack of gloves lead to higher laceration rates (34.3% in BKFC/BKB vs. 8.7% in gloved boxing), but lower concussion rates (4.76% vs. 12%), according to a 2025 ARP study. Experts debate safety: neurosurgeon Peter Hamlyn warns ungloved fists deliver more brain injury energy, while David Tetreault argues shorter fights mitigate risks. Critics like Headway’s Luke Griggs condemn the “glamourization of brain injury,” as the sport attracts younger audiences with its raw, fast-paced action.

With events like the Indigo venue’s 2026 debut, bare-knuckle boxing’s rise sparks questions about its long-term health impacts.