Hamstring Injury

A hamstring injury is a tear or strain (pulled muscle) in the group of muscles and tendons in the back of your thigh. It’s one of the most common and troublesome injuries seen mostly in athletes.

What is the hamstring? How does it normally work?

The hamstring connects the largest thigh muscle to your bone. The main job of your hamstring is to allow your leg to flex (bend) and extend (stretch). You use your hamstring the most when you:

• Lunge.
• Run.
• Climb.
• Sprint.
• Jump.
• Stretch too far.

What are the grades of a hamstring injury?

The grade describes the severity of your hamstring injury:

• Grade 1: A mild muscle pull/strain.
• Grade 2: A partial muscle tear.
• Grade 3: A complete muscle tear.

Who is most likely to injure their hamstring?

Athletes, especially those who jump, climb and lunge. You’re also more likely to have a hamstring injury if you’ve had one before.

Do hamstring injuries hurt?

Yes. The pain in your thigh may come on suddenly.