Well you all know that injuries will happen and people into martial arts just like people who do football or soccer and Judo more so can be hard on you body and you can get injuries even bad kinds!! Getting hit very hard on the side of your knee, Overextend the knee joints,improper kicking, Jumping and twisting movements, Quickly stop moving and change direction really fast while running, landing from a jump, or turning movements all can cause ACL knee of over-stretching or tearing of the anterior cruciate ligament. A tear may be partial or complete. Treatment is rest and some cases that are bad may need rehab or surgery. To see a doctors and specialists cost money and under countries with universal health care can run into a lot of government bureaucracy. 1 Month or more to see specialist 2 Yes 3 to 6 month waiting list for surgery. 3 Government not wanting to do surgery unless in some cases you are a sport athletes. 5 family doctors giving you the runaround !! Yes out side his or her knowable area of study of medicine or lack of problem solving skills. Well a rule is if you have money and in the US the doctors will do any thing ASAP to fix you up. But people who have a really bad HMO plans or in country with universal health care with bad government bureaucracy how does this play in with martial arts? I hear some countries people don't even run or go bike riding of fear yes fear of a fall injury!!!Yes waiting 6 months for knee or hip surgery!!! A MMA fighter or some one missing martial arts training for year would destroy their career and training. So how does this tie in with martial arts? Should martial arts people have special doctors that know martial arts injuries? Buy into a health care plan that covers it? If you not in the US in some of those countries is martial arts a big no? Go at your own risk. If you need hip or knee surgery you are in for some fun times at the doctors office.Playing I have problem doctor. Doctor say what? I have a problem. What. The health care system is not getting better but much worse. Some of these horror stories are people with bad HMO plans or universal health care. I'm sure Ronda Rousey could have doctor or specialist come to her house if need be and have him or her stay up all night coming up with a treatment plan!! Other people that is not the case.