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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

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Jumped off 15ft rock into ocean, hit ocean floor on one leg and crumbled. pain behind the knee somewhat on the medial side. no significant swelling?

Jumped off 15ft rock into ocean, hit ocean floor on one leg and crumbled. pain behind the knee somewhat on the medial side. no significant swelling?

Varies: If you can bear weight on it, you may have just "sprained" it and should get better quickly. If either it is painful to put weight on it, or if if does not get better I would be seen. Somewhat concerning for sustaining a tear in the posterior horn if the medial meniscus which is fairly common and sometimes requires arthroscopic surgery. ...Read more

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Pain just under and back of right knee after a fall, there was a lot of swelling at first but now its normal, can't put pressure on the leg, X-ray normal?

Pain just under and back of right knee after a fall, there was a lot of swelling at first but now its normal, can't put pressure on the leg, X-ray normal?

Possible bone bruise: Initial xrays may be negative and still have significant injury to either bone or soft tissues. Persistent symptoms might prompt further evaluation by orthopedist, possible mr. ...Read more

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Swelling below the knee in front of it only no swelling in the back or sides this is my mom leg not mine and she has pain?

Swelling below the knee in front of it only no swelling in the back or sides this is my mom leg not mine and she has pain?

She needs to see : Her pcp or get referred to an ortho. For possible arthritis, bursitis, tendinitis etc. Take care! http://orthopedics.About.Com/od/hipknee/f/kneeswelling.Htm. ...Read more

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Am 34 yrs with a lost of appetite, losing weight, with nausea and a painful swelling behind my knee up my leg and am losing weight?

Am 34 yrs with a lost of appetite, losing weight, with nausea and a painful swelling behind my knee up my leg and am losing weight?

Deserving: You seem to be deserving of a thorough medical evaluation given your concerning symptoms. The swelling behind your leg may be worth imaging with a ct scan or MRI and if the mass is suggestive of a tumor (sarcoma), then additional scans of your lungs and a biopsy would be in order. ...Read more

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I've been on lyrica (pregabalin) for like 6 months and just stated getting painful leg swelling behind thigh near knee is lyrica (pregabalin) causing it?

Lyrics side effects : That's not one of the common side effects ( like sleepiness or dizziness) , but swelling of the legs can occur as a side effect , You should speak with the my who has treated U with it. ...Read more

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Swelling at the top behind the knee, no red, no purple. With mild burning and sporadic pain in the leg and ankle, what can it be?

Swelling at the top behind the knee, no red, no purple. With mild burning and sporadic pain in the leg and ankle, what can it be?

Need to examine: It is not feasible to provide a meaningful opinion without taking additional history, and physical examination, however what you described suggests a Baker cyst. It is an outpouching of the synovial lining of the joint. It would be prudent to see a doctor for proper diagnosis and treatment. ...Read more

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Stinging pain both calves, & behind knees, not from exercise. Legs feel heavy. No redness/swelling. Worse in AM but never goes away completely. ?

Get checked: A proper neuromuscular/vascular exam can typically pinpoint the issue in question... check with your doctor in person for proper diagnosis and treatment. If you have any pain or discomfort in your calves you should be seen immediately in urgent care. ...Read more

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Burning sensation behind the knee of the right leg especially with the cold, with small swelling, no redness, no purplish, can be nerve? Started 3days

Burning sensation behind the knee of the right leg especially with the cold, with small swelling, no redness, no purplish, can be nerve? Started 3days

?popliteal cyst?: Your symptoms are likely due to a popliteal cyst, also called a Baker's Cyst. It is a bursal fat pad that has become inflammed from weather or altered gait, among other causes. Anti-inflammatories are often prescribed for it, in fairly high doses, such as ibuprofen 600-800mg three to four times per day. If that doesn't work after a week or so, drainage and steroid injection may be necessary,. ...Read more