blue - bron
- blue asphyxia
- blue baby
- blue blindness
- blue bloater
- blue cataract
- blue diaper syndrome
- blue dot cataract
- blue drum
- blue funk
- blue kidney
- blue line
- blue mood
- blue phlebitis
- blue pus
- blue rubber bleb naevus syndrome
- blue sclerotics
- blue-yellow blindness
- blues
- Blumberg's sign
- blunt abdominal trauma
- blunt pronged surgical retractor
- blurring of vision
- blush
- board certification
- board of health
- boardlike (abdominal) rigidity
- boardlike abdomen
- Boas' point
- Boas' sign
- boat-shaped abdomen
- Bobroff's operation
- Bochdalek's cyst
- Bochdalek's foramen
- Bochdalek's lumbocostal triangle
- Bockhart's disease
- Bockhart's impetigo
- Bodansky unit
- Bodansky's method
- body
- body agnosia