human body

[stevenflett]

are babys born with knee caps?

[Clanad]

Yes, however they are quite soft and pliable since the material from which they're made is cartilaginous and hardens later...

[redcrx]

as clanad says, they are but they are not hard like adults. So it can be said that they dont have kneecaps as such until they are about 3 or 4 i think.

[Ethel]

Babies kneecaps are made of cartilage, and so don't show on an xray.

They turn to bone (ossify) around 3 - 4 years of age.