What is a hamstring rupture?
The hamstring consists of three large muscles in the back of the thigh. A person with a hamstring rupture has torn one or more of the muscles that make up the hamstring. A hamstring rupture is caused by a force that overloads the muscles in the back of the thigh: the muscle fibers tear, which results in swelling and pain. Most hamstring ruptures are caused by sports that require sprinting or jumping.

What are the symptoms of a hamstring rupture?
Symptoms of a hamstring rupture include sudden, severe pain in the back of the thigh. Other symptoms include leg swelling, bruising and a knot or bulge in the thigh muscle, and inability to move the knee or stand.

How does the doctor treat a hamstring rupture?
Treatment for a hamstring rupture may include rest, cold compresses, elevation, crutches, and an elastic wrap. Other treatment measures include physical therapy, nonsteroidal anti-inflammatory medications for pain, and surgery.