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Doctor insights on: Sudden Sharp Pain Behind Knee That Almost Knocks You Over

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Tight feeling sharp pain behind knee and into buttock?

Tight feeling sharp pain behind knee and into buttock?

Knee pain: Sometimes a baker cyst can cuase pain in the back of knee. Also hamstrings attach near the buttocks and eun behind knee and can cuase problems. ...Read more

Dr. Frederick Buechel, jr. md
1,163 Doctors shared insights

Knee Pain (Definition)

The knee joint is the joint between three bone of the lower leg: the proximal tibia, the distal femur, and the patella. There are multiple causes of knee pain including degenerative, ...Read more


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Got a sharp pain behind knee cap and is getting worse everyday could it be fluid if so is there anyway of helping it without going to the doctor?

Got a sharp pain behind knee cap and is getting worse everyday could it be fluid if so is there anyway of helping it without going to the doctor?

You can try: Oral anti inflammatory meds such as aleve (naproxen) or motrin (naprosyn or ibuprofen), rest, and alternating ice and heat. If that does not help, you need to see a doctor. Don't let it go until damage becomes irreversible. ...Read more

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No redness or swelling. Not on the pill. Tearing like sharp pain behind knee where the joint is when I stand too long or walk. D dimmer test ok.?

No redness or swelling. Not on the pill. Tearing like sharp pain behind knee where the joint is when I stand too long or walk. D dimmer test ok.?

Not DVT: The negative D-diner test effectively rules out deep vein thrombosis as diagnosis.

Your symptoms suggest orthopedic problem in knee or sciatica. ...Read more

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I m having a very sharp pain in my legs my thigh is so tight and its so painful that's it hard to move. Pain behind knee! Wtd? I'm 145lbs 5 0” inches

I m having a very sharp pain in my legs my thigh is so tight and its so painful that's it hard to move. Pain behind knee! Wtd? I'm 145lbs 5 0” inches

Nerve: The combination of pain radiating down the leg and numbness is consistent with a nerve impingement from a bulging disc in your lower spine. A lesser cause is primary nerve inflammation (neuritis). A neurologist is best qualified to evaluate and advise you. A spine MRI may be ordered. ...Read more

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L5-S1 microdiscectomy Fri for left leg sciatic pain. Calf/foot pain relief w/some thigh/behind knee pain. Pain less AM but sharp pain down left leg into foot w/pain level of 9.5 & hurts sitting/lying.

Microdiskectomy: Give it some time; sometimes simply moving the roots around can upset the lumbar plexus and give you intermittent (even quite severe) pain, although it resolves within a week or two. Getting to the disk requires mobilization of the roots and inflammatory changes from that- or the disk herniation- itself can give this pain. As long as bowel and bladder OK, hopefully this will resolve also. Best! ...Read more

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Knee pain: under and below the knee cap-when I stretch it there is sharp pain. I've been icing it, but doesn't help. Hurting for more than a week.

Knee pain: under and below the knee cap-when I stretch it there is sharp pain. I've been icing it, but doesn't help. Hurting for more than a week.

Varies: There are several possibilities including tendinitis of the patellar tendon at its orgin on the patella or chondromalacia on the under surface of the patella. You would probably do well to avoid jumping activities and activities that involve a lot of knee flexion, and if it does not get better I would consider being seen. ...Read more

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I had this knee pain evertime when I walk. And when im bending it satred to have this sharp pain, how am I going to explane to my doc and what its?

I had this knee pain evertime when I walk. And when im bending it satred to have this sharp pain, how am I going to explane to my doc and what its?

See below: Pain explanation terms
mild, moderate severe
constant intermittent
location medial lateral peripatellar-knee cap
in front, back
mechanical catching locking
radiation down leg
aggravating activities ...Read more

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Went to ortho dr about my knee pain. Sharp pain and locking up all time. All dr wants to do is give pain meds. What can I do for it. I'm tired of meds.

Good for you!!: Sometimes a PT is better for this than an ortho Dr. Especially after they determine no surgery is needed. So seek a good PT referral - ask at a Dr, a hospital, a nursing home, a gym, a pharmacy. You'll find they can really help! ...Read more

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When I stand I get a sharp pain in my knee and when I kneel. It will also click a lot I have suffered with knee pain for 18 years. What could it be.

See details: A tear or degenerative arthritis are the most likely causes. See a rheumatologist or orthopedist. You need an exam, x ray and an MRI. ...Read more

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Heard a pop behind my knee. Sharp pain in the middle of the back of my knee.

Consult doctor: It could be ruptured muscle, or ruptured cyst which can be confirmed by scan, please discuss with your physician. ...Read more

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What can cause sharp pain behind my knee when skateboarding?

What can cause sharp pain behind my knee when skateboarding?

Commonly Tendinitis: While there can be many cause of pain in the back of the knee and full evaluation may be necessary to be sure, mostly commonly if you a skateboarding a lot -- you may be experiencing a repetitive use injury and commonly that is a result of tendons becoming inflammed. Hope that helps! ...Read more

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I recently played a pick-up soccer game & afterwards, I started feeling a sharp pain behind my knee. It's been 3 days & I still feel discomfort there?

I recently played a pick-up soccer game & afterwards, I started feeling a sharp pain behind my knee. It's been 3 days & I still feel discomfort there?

Behind knee pain: This could be a baker cyst if you have a soft squishy mass behind the knee. To be honest get checked at your PCP. He will do maneuvers, to check the integrity of the ACL, PCL, MCL ligaments to make sure there is no sign of tear. ...Read more

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Sharp pain right behind the knee on the back of my leg, it mainly hurts when I bend my leg or sit long but does not hurt when I walk. What is this

Sharp pain right behind the knee on the back of my leg, it mainly hurts when I bend my leg or sit long but does not hurt when I walk. What is this

See your doctor: This is a problem that necessitates a face-to-face meeting with your doctor. This will allow him/her to examine you, ask specific questions. And possibly order tests to find out what's wrong and what to do to help you. ...Read more

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Sharp pain behind the left knee cap when at rest, that is lying in bed.?

Sharp pain behind the left knee cap when at rest, that is lying in bed.?

Consult: With a doctor to make sure this is not a problem with your circulation or nerves. If there is any swelling, it could be deep vein thrombophlebitis, which can lead to pulmonary embolism. ...Read more

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What would cause sudden sharp pain that seems to originate from behind the knee and runs down to mid calf and up to mid thigh?

What would cause sudden sharp pain that seems to originate from behind the knee and runs down to mid calf and up to mid thigh?

See below: This actually sounds like sciatica or pain from an irritated nerve root in your lumbar spine. If your leg is hot, swollen, or tender to touch behind the knee or calf then a clot is more likely. I would recommend seeing your physician asap just to be sure. ...Read more

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Having a sharp pain behind my knee toward my lower thigh when I fold my leg or over stretch it, also if I press the area. Cause for concern?

Maybe: Part of the decision about seriousness of this depends on how long and cause of the pain (like, injury or not).
If this has been going on for more than a few weeks, it is more likely to need some sort of intervention. If it is recent, you should make sure you do not have a blood clot. ...Read more

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What does it mean when you get sharp pain with burning followed by itching in your upper leg behind knee?

What does it mean when you get sharp pain with burning followed by itching in your upper leg behind knee?

Nerve: Difficult to tell with such little history but off the top of my head, burning and itching tend to indicate the nerves in your back or leg as the cause. Your doc may examine your back and so some range do motion and lower leg testing in exam. ...Read more

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Bent my knees&as I rose my knee felt it was about to pop. Instead of popping, I felt a sharp pain behind kneecap. Been sore for 2 days to bend?

Bent my knees&as I rose my knee felt it was about to pop. Instead of popping, I felt a sharp pain behind kneecap. Been sore for 2 days to bend?

Ortho Evaluation: Your symptoms of catching suddenly sound structural, meaning that you likely have a cartilage injury to either the undersurface of your kneecap (patella) or the opposing surface of the trochlea. A thorough orthopedic evaluation will help when the weather not you need advanced imaging beyond xrays, such as an MRI. ...Read more

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Behind knee (burning)and calf (dull/sharp) pain that's been getting worse over the last 3weeks. X-ray normal ultrasound knee to groin normal. No injur?

Behind knee (burning)and calf (dull/sharp) pain that's been getting worse over the last 3weeks. X-ray normal ultrasound knee to groin normal. No injur?

Knee: I think you should see your physician and ask an ultrasound. There csn still be other soft tissue pathology that does not show up on x ray like a Bakers cyst. Sounds like there is something pinching some nerves back there. ...Read more

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Severe sharp pain in upper leg above and behind right knee (muscular?) Night cramps in legs especially after exercise.

Severe sharp pain in upper leg above and behind right knee (muscular?) Night cramps in legs especially after exercise.

Musculoskeletal pain: Firstly, it is awesome that you exercise! The pain you are explaining sounds like it could be a muscle strain or dysfunction in the biomechanics of the body. It could also be a symptom of an underlying disease which may need to be investigated.

A good place to start is to get a good orthopaedic examination done. A visit to a good chiropractor may help. Basic blood tests may rule out deficiencies. ...Read more

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I have been having sharp pain behind my knee when bent, deep within the knee, by the kneecap, and recently twitching after running, but no swelling.

I have been having sharp pain behind my knee when bent, deep within the knee, by the kneecap, and recently twitching after running, but no swelling.

Souds like: Osgood-schlatter's disease, common in you age group. You will need an accurate physical examination and maybe x rays, so see your doctor for better advice. ...Read more

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Severe lower right side back pain. Sharp pain to hip, behind knee to my foot. I've weakness and numbness in my foot and leg. What could be problem?

Severe lower right side back pain. Sharp pain to hip, behind knee to my foot. I've weakness and numbness in my foot and leg. What could be problem?

Check your nerves: See a neurologist. I suggest checking your nerves with NCV test of the lower extremity. Sounds like you might have sciatica which is the compression of sciatic nerve that emerges from your lower back and goes all the way to your toes. ...Read more