Keenan Cornelius recently talked about on his facebook page, how much damage his fingers had taken after 10 years of Jiu-Jitsu:
Coming up on a decade of Jiu-Jitsu, these hands have taken a beating. I would say I’ve lost about 20% of the mobility in my fingers. I can’t make a closed fist anymore which has forced me to use bas rutten open palm self defense strikes when things go sour in the streetz. I spend about 60 dollars a year in tape (buying in bulk) multiple sprains, an evulsion fracture and countless torn knuckles. I’m proud of what they have become, gnarled claws from 10 years of choking and gripping and grasping. Here’s to the next decade of mangled digits.
Sports like rock climbing, wrestling, judo, jiu jitsu, BJJ, volleyball, and basketball can sprain fingers or put gradual wear and tear on your knuckles from the daily grind.
Thin medical tape specifically designed and cut for fingers, such as Tape Armor will provide you with the necessary support to prevent injury and help recovery.
Stephan Kesting and Rob Biernacki talk about when and how to tape your fingers in BJJ.