FAS Facial Features    

The 3 Diagnostic Facial Features of FAS

(All three must be present)

Examples of the full (Rank 4) FAS facial phenotype across race and age (A) Caucasian, (B) Caucasian infant, (C) African American, (D) Asian, (E) Hispanic, (F) Native American.
(copyright Astley 2012)

        1. Short Palpebral Fissure Lengths
          Distance from A to B is 2 or more standard
          deviations below the mean.

        2. Smooth Philtrum
          The vertical groove between the nose and upper lip is a
          Rank 4 or 5 on the Lip-Philtrum Guide.
          Click here to view additional instructional photos on how to identify a Rank 4 or Rank 5 philtrum.

        3. Thin Upper Lip
          Red portion of upper lip is a
          Rank 4 or 5 on the Lip-Philtrum Guide.