What are bifid ribs and are they a symptom of the syndrome? by Margaret | 5 Dec 2018 | FAQ ‹ Previous My thumbs are very short from the middle joint to the end. Is this part of the syndrome? Next › Does your child have special educational needs? Related Posts Is hammer toe related to Gorlin Syndrome? Do I need to stay out of the sun? My thumbs are very short from the middle joint to the end. Is this part of the syndrome? Yes they are. Bifid ribs are ribs that are split in two. They cause no problems and need no attention.