What causes constant pain in one of the knee?
Patient: I am having constant pain in one of my knee.  It happened after i heard a crakling sound in my knee bones while i was trying to stretch my feet.  for the past 4 days i am unable to walk properly and am in constant pain.  Also i did not take any medications yet.  what do i do? and whats wrong with my knees? Doctor: Hai u might have an acute knee injury either meniscal or small ligament injury or could be a sprain, u can go for pain killers, avoid vigorous upstairs and down stairs as the injury may aggravate. Pls go for mri scan of the knee, and an orthopaedic opinion