For the last month or so, I'm experiencing periodic burning pain just above my knee on the back side of my left leg. It feels vascular, not like muscle or ligament pain. It appeared quite severely this evening while driving home after playing volleyball. I am a 49 year old male and in excellent physical condition. Any help would be greatly appreciated.
Welcome to the forum!
Pain on the back side just above the knee can be due to Baker's cyst (or popliteal cyst, this causes pain if associated with arthritis), popliteal tendonitis, Hamstrings tendinitis (biceps femoris tendinitis), injury to the posterior horn of lateral meniscus or deep vein thrombosis.
Since you are actively in sports tendonitis is a possibility. Please consult a doctor, ideally a sports medicine specialist regarding this. It is difficult to give a confirmed diagnosis on net.
Hope this helps. Do let me know if there is any thing else and keep me posted. Take care!
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