Many families first notice acromesomelic dysplasia-3 in early infancy when a baby’s arms and legs look shorter than expected, especially the middle and end segments like the forearms and lower legs, while the trunk seems average in length. As the child grows, the first signs of acromesomelic dysplasia-3 become clearer through delayed motor milestones, a waddling gait, or difficulty reaching and grasping due to short hands and feet with broad, stubby fingers and toes. Doctors typically confirm how acromesomelic dysplasia-3 is first noticed with measurements showing disproportionate short stature, characteristic X‑ray findings of the limbs, and genetic testing.