What are the symptoms?

Short upper arms and thighs (compared to the forearms and lower legs)
Large head and forehead with a flat bridge of the nose
Dental problems, including crowded or crooked teeth
Broad, flat feet, short toes and short fingers
Trident hand, a condition in which you have an extra space between the middle and ring fingers
Weak muscle tone. Babies with weak muscle tone may have delays in meeting developmental milestones, like sitting, standing and walking.
Bowed legs. This is when legs curve outward between the thighs and ankles. Bowed legs can cause pain and trouble with walking. If the bowing or pain is severe, surgery can fix bowed legs.