What is a hamstring strain?
A strain is a stretch or tear of a muscle or tendon. People
commonly call such an injury a "pulled" muscle.
Your hamstring muscle group is in the back of your thigh and
allows you to bend your knee. It is made up of three large
muscles: the biceps, semimembranosus, and semitendinosus.
How does it occur?
A hamstring muscle strain usually occurs when these muscles
are contracted forcefully during activities such as running
or jumping.
What are the symptoms?
There is often a burning feeling or a popping when the
injury occurs. You have pain when walking or when bending
or straightening your leg. A few days after the injury, you
may have bruising on your leg just below the injury.
How is it diagnosed?
Your health care provider will examine your leg and find
tenderness at the site of the injury.
How is it treated?
Treatment may include:
- applying ice packs to your hamstrings for 20 to 30
minutes every 3 to 4 hours for 2 to 3 days or until the
pain goes away
- elevating your leg by placing a pillow underneath it
- wrapping an elastic bandage around your leg for
compression to keep the swelling from getting worse
- taking anti-inflammatory medicine according to your
health care provider's prescription
- using crutches if it is too painful to walk.
As you return to your activity, you may be given an elastic
thigh wrap to give extra support to your hamstrings. While
you are recovering from your injury, you will need to change
your sport or activity to one that does not make your
condition worse. For example, you may need to swim or
bicycle instead of run.
How long will the effects last?
The length of recovery depends on many factors such as your
age, health, and if you have had a previous hamstring
injury. Recovery time also depends on the severity of the
injury. A mild hamstring strain may recover within a few
weeks, whereas a severe injury may take 6 weeks or longer to
recover. You need to stop doing the activities that cause
pain until the muscle has healed. If you continue doing
activities that cause pain, your symptoms will return and it
will take longer to recover.
When can I return to my normal activities?
Everyone recovers from an injury at a different rate.
Return to your activities will be determined by how soon
your hamstring recovers, not by how many days or weeks it
has been since your injury has occurred. In general, the
longer you have symptoms before you start treatment, the
longer it will take to get better. The goal of
rehabilitation is to return you to your normal activities as
soon as is safely possible. If you return too soon you may
worsen your injury.
You may safely return to your normal activities when,
starting from the top of the list and progressing to the
end, each of the following is true:
- You have full range of motion in the injured leg compared
to the uninjured leg.
- You have full strength of the injured leg compared to the
uninjured leg.
- You can walk straight ahead without pain or limping.
How can I prevent a hamstring strain?
A hamstring strain is best prevented by warming up properly
and stretching your hamstring muscles prior to your
activities. This is especially important in sprinting or
jumping.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File EXR4125F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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