DEAR MAYO CLINIC: One of my knees makes an odd crackling sound (like the sound you might hear when scrunching plastic wrap) when I go down a flight of stairs. However, I don't have any knee pain.

Add Yahoo as a preferred source to see more of our stories on Google. The human body makes strange noises when something’s amiss. A growling tummy can mean you're low on food. Wheezing from the chest ...

The crunching of your knee could soon help doctors determine whether your joints are healthy or not. Professor Omer Inan, from Georgia Institute of Technology, used to be a discus thrower and, as a ...

Ever since I can remember, my knees have made a crunching noise when they bend. So far, thank goodness, this is still only a noise and pain going down stairs.. I am 36 and started running about eight ...