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Doctor insights on: Swelling Behind Knee Back Of Leg

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Sharp pains behind right thigh down past my knee. Knee not swelling, can't put weight on it. Feels like fire in back of leg. Hip replaced 2007?

Sharp pains behind right thigh down past my knee.  Knee not swelling, can't put weight on it.  Feels like fire in back of leg.  Hip replaced 2007?

Nerve irritation: You may have lumbosacral nerve root irritation and the right hip replacement may or may not have anything to do with these new symptoms. Please have it evaluated by a family physician and a specialist inrehabilitation medicine. ...Read more

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Dr. David Schleimer
1,498 doctors shared insights

Swelling (Definition)

Swelling is the enlargement of organs, skin, or other body parts. It is caused by a buildup of fluid in the tissues. The extra fluid can lead to a rapid increase in weight over a short period of time (days to weeks). Swelling can occur all over the body (generalized) or only in one part ...Read more


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I feel pressure in the back of my right leg. There is swelling behind my knee and a mild tingling in my right foot. Whatshould i do?

I feel pressure in the back of my right leg. There is swelling behind my knee and a mild tingling in my right foot. Whatshould i do?

Get it checked!!!: Get examined because several there are conditions such as a baker's cyst that can present themselves in the back of the knee and pinch a nerve to cause tingling in the toes. You also have to rule out a more serious clot (dvt). Examination and tests such as an ultrasound (doppler) would be used to diagnose. ...Read more

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2 back surgeries in ~1 month. Wondering if increased swelling@L5-S1 from overdoing it could cause severe burning/cramping pain behind knee, in calf/ankle, & thigh? Have to lie down & hard to walk/sit.

2 back surgeries in ~1 month. Wondering if increased swelling@L5-S1 from overdoing it could cause severe burning/cramping pain behind knee, in calf/ankle, & thigh? Have to lie down & hard to walk/sit.

This may be related : to anyone of several possible causes. Sometimes, even though the nerve that may have had some compression on it does not immediately respond to surgery or if you had surgery especially 2 so close that just manipulation of nerve may cause inflammation . Also one has to make sure you did not develop a blood clot in leg post op. You should discuss this with your surgeon. Scar tissue can form now. ...Read more

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I popped my knee out of place and it popped back in but now my whole leg hurts and is swelling ?

I popped my knee out of place and it popped back in but now my whole leg hurts and is swelling ?

See a doctor: It sounds like you may have dislocated your knee cap (patella). This is fairly common in young females in particular. You need to see an orthopedic surgeon or sports med doctor for evaluation and treatment. ...Read more

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I slept on my back w/ leg up & bent @ the knee. I tried 2 put leg straight & it made a wet/crunchy pop. Pain & little swelling now. What wrong? T.Y

I slept on my back w/ leg up & bent @ the knee. I tried 2 put leg straight & it made a wet/crunchy pop. Pain & little swelling now. What wrong? T.Y

Can be meniscus: Could of have problem with meniscus, stay off your feet, apply ice, take otc ibuprofen, if pain not better in a few days go get an x-ray, might need physical therapy and MRI eventually. ...Read more

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I have a bug bite behind my knee. It constantly itches and is swelling. The pain has gotten so severe that I cannot extend my leg. What do I do?

I have a bug bite behind my knee. It constantly itches and is swelling. The pain has gotten so severe that I cannot extend my leg. What do I do?

Infected?: If it is red and hot it may be infected. If you think that is possible then see a doctor as soon as you can. Infections can become more serious if left untreated. If it is not red and hot try some cool compresses and hydrocortisone cream to try do decrease the itching until it resolves. ...Read more