China 
Africa 
- Blimp
- Blinatumomab
- Blind loop syndrome
- Blind spot
- Blinded experiment
- Blinding
- Blindsight
- Blinking
- Blisters
- Bloating
- Block copolymers
- Block design
- Block design test
- Blocking antibody
- Blonanserin
- Blond
- Blood
- Blood alcohol content
- Blood as food
- Blood bag
- Blood banks
- Blood borne virus
- Blood brain barrier
- Blood cancer
- Blood capillaries
- Blood cell count
- Blood cells
- Blood chemistry
- Blood circulation
- Blood clots
- Blood clotting
- Blood clotting disorders
- Blood clotting factor
- Blood clotting tests
- Blood coagulation
- Blood components
- Blood culture
- Blood disorder
- Blood disorders
- Blood doping
- Blood dyscrasia
- Blood film
- Blood flow
- Blood fluke
- Blood fractionation
- Blood gas
- Blood gas analysis
- Blood gas partition coefficient
- Blood glucose
- Blood glucose concentration
- Blood glucose monitoring
- Blood group
- Blood group A
- Blood group system
- Blood islands
- Blood lead level
- Blood lipids
- Blood management
- Blood oxygenation
- Blood pH
- Blood plasma
- Blood platelets
- Blood pool agent
- Blood pressure
- Blood pressure cuff
- Blood pressure determination
- Blood pressure meter
- Blood pressure monitors
- Blood pressure regulation
- Blood products
- Blood proteins
- Blood retina barrier
- Blood sampling
- Blood serum
- Blood smear
- Blood stasis
- Blood substitutes
- Blood transfusion
- Blood typing
- Blood urea nitrogen
- Blood vessel
- Blood vessel tone
- Blood vessels
- Blood viscosity
- Blood volume
- Blood-air barrier
- Blood-brain barrier
- Blood-gas partition coefficient
- Blood-ocular barrier
- Blood-retinal barrier
- Blood-spinal cord barrier
- Blood-testis barrier
- Blood-to-plasma ratio
- Bloodletting
- Bloodstream infection
- Bloody diarrhea
- Bloom syndrome
- Blosum
- Blotting
- Blount's disease
- Blowout fracture
- Blubber
- Blue Button
- Blue Zones
- Blue baby syndrome
- Blue field entoptic phenomenon
- Blue green algae
- Blue light
- Blue mold
- Blue nevus
- Blue rubber bleb nevus
- Blue rubber bleb nevus syndrome
- Blue toe syndrome
- Blueberries
- Blueberry muffin baby
- Bluing
- Blumberg's sign
- Blumeatin
- Blumensaat's line
- Blunt trauma
- Blunted affect
- Blurred vision
- Blushing
- Bmpr1a
- Bmpr1b
- Boar taint
- Bobath concept
- Bocaparvovirus
- Bocavirus
- Boceprevir
- Bochdalek hernia
- Bococizumab
- Bodily integrity
- Bodily secretions
- Body Shape Index
- Body Worlds
- Body adiposity index
- Body area network
- Body burden
- Body cavity
- Body composition
- Body contouring
- Body donation
- Body dysmorphic disorder
- Body fat
- Body fat percentage
- Body fluid
- Body fluids
- Body growth
- Body hair