Conversation: The conversation between human and AI assistant.
[|Human|] While I was playing soccer in our local club I felt this sudden severe knee pain and my knee gave away and was very swollen quickly. It now pops every time I bend my knee and results in very sharp pain. Also the inside and outside of knee are swollen and on the outside, there is a tender lump. What could it be?
[|AI|]  Hello, thanks for writing in. With a history of trauma to the knee, followed by a pop and feeling of give-away or buckling, I would like to rule out a meniscal injury. It is commonly associated with damage to other ligaments around the knee. These structures are important shock-absorbers and stabilizers for the knee joint, hence you must see an orthopedic surgeon at the earliest. He/she can examine your knee and suggest an imaging study-MRI. Until you get to the doctor, rest the leg and do ice application, it may bring some relief. Take care.