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babies do not have kneecaps until they are about two years of age. They do have cartlidge in the space until then so that their legs don't hyperextend, but the actual bone itself to make a kneecap does not form until way later. You can look this answer up, or even ask a doctor.

same answer but a little more info: a baby's kneecap is made of cartlidge (see above) and the cartlidge grows in the 4th month of pregnancy

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14y ago

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