Which part of human body does not grow from birth to death?

The Only part of the body that does not grow after birth is the innermost ear ossicle - Stapes (looks like stirrup) which is attached to the oval window of the cochlea. Its size is about 3 mm at birth and doesn’t change in size as we grow. But thinning of the Stapes have been seen with old age. Interestingly, malformation of the Stapes causes more than 60% of congenital middle ear defects.

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