Some conditions that cause short stature do not appear in fetuses or infants. For example, signs of pseudoachondroplasia are usually not visible until the child is between two or three years old. Starting at this age, the child may not experience the same rate of growth as their peers. Their lower limbs may develop abnormally, and their fingers may remain relatively short. Some physicians misdiagnose pseudoachondroplasia as achondroplasia or hypochondroplasia, but these conditions have distinct genetic origins.

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