WSFA/NBC - Hamstring injuries are common and can happen to anyone during physical activity. It can hit a professional athlete or even your daily runner.
Dr. Patrick McCulloch says by looking at an MRI, doctors can grade the injury.
"Grade one is a very mild injury and that's where there will some soreness and some stiffness there, but the athlete generally remains day-to-day," said McCulloch.
Recovery means stretching and gradually going back to normal activity but McCulloch says with grades two or three patients actually have some tearing of the muscle fibers and a little bit more bleeding.
The doctor says recovery can take weeks with more intense treatment, but typically not surgery. He says one of the most common problems with this is if you try to go back too early, you can re-aggravate that injury.
To prevent hamstring injuries, McCulloch says it's simple. Stretch often.
"Doing activities like yoga and a good flexibility program can be helpful and that's why we typically do those," McCulloch.
Doctors say if you have had a hamstring injury in the past, you are likely to have another one, especially if you return to the same sport or the same activity.