The following signs may indicate your child is at risk for an autism spectrum disorder:
– 6 months: No big smiles or other warm, joyful expressions.
– 9 months: No back-and-forth sharing of sounds, smiles, or other facial expressions
– 12 months: No babbling, no back-and-forth gestures such as pointing, showing, reaching, or waving
– 16 months: No words
– 24 months: No meaningful two-word phrases (not including imitating)
– ANY AGE: Any loss of speech, babbling, or social skills