Odd noise in knees

[Spartacus Maximus]

Has anybody ever had a knee make a crackling or popping noise for no apparent reason? There is no pain or soreness, nor has there been any significant recent injury; yet it makes an audible crackling noise as it bends. It sounds a little like when someone cracks their knuckles.

[MAfreak]

i have this since many years without having further knee problems.

remember even cracking knuckles aren't fully explained by science yet.

as long as there is no pain or mobility problem, i wouldn't be to worried about it.

[Spartacus Maximus]

Age would make sense as a the source of issues with joints, but this only applies to much older people. Perhaps the fact that it is not both sides has something to do with how people naturally have a slightly weaker side. Left dominant versus right dominant.

[Nidan Melbourne]

That is Crepitis; it is a natural occurance to have and no need for concern. It is just little air bubbles popping inside the joint itself.

I'm 24 and have it in my joints.