Cracking?

[AsraArdwulfLeberecht]

I read online that cracking your joints and bones is harmful. But to me it happens randomly, sometimes if I accidentally hit my knuckles for example (a very light touch ) or hold something in an uncomfortable angle, they crack. If it happens naturally is it still unhealthy?
Or are my joints weak?

 

[Ol argedco luciftias]

It is natural for this to happen sometimes.