Brachymorphism-onychodysplasia-dysphalangism (BOD) is a very rare malformation syndrome that is characterized by short stature, hypoplastic fifth digits with tiny dysplastic nails, facial dysmorphism with coarse features including a wide mouth and broad nose, and mild intellectual disability. It has been suggested that Coffin-Siris syndrome (see this term) and BOD syndrome are perhaps allelic variants.

Short distance from the end of the toe to the most distal interphalangeal crease or distal interphalangeal joint flexion point, i.e., abnormally short distal phalanx of toe.