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- Brodimoprim
- Brodmann area
- Brodmann area 10
- Brodmann area 17
- Brodmann area 18
- Brodmann area 22
- Brodmann area 24
- Brodmann area 4
- Brodmann area 40
- Brodmann area 5
- Brodmann area 6
- Brodmann area 7
- Brodmann area 8
- Brodmann area 9
- Brofaromine
- Broken finger
- Broken heart
- Broken neck
- Bromadiolone
- Bromate
- Bromazepam
- Brome mosaic virus
- Bromelain
- Bromelains
- Bromfenac
- Bromide
- Bromide ion
- Brominated flame retardants
- Bromination
- Bromine
- Bromine water
- Bromism
- Bromobenzene
- Bromocresol green
- Bromocresol purple
- Bromocriptine
- Bromodeoxyuridine
- Bromoderma
- Bromodomains
- Bromoethane
- Bromophenol
- Bromothymol blue
- Bromoviridae
- Brompheniramine
- Bronchi
- Bronchial arteries
- Bronchial artery
- Bronchial artery embolization
- Bronchial asthma
- Bronchial challenge test
- Bronchial circulation
- Bronchial diseases
- Bronchial hyperresponsiveness
- Bronchial thermoplasty
- Bronchial tubes
- Bronchiectasis
- Bronchiole
- Bronchioles
- Bronchiolitis
- Bronchiolitis obliterans
- Bronchioloalveolar carcinoma
- Bronchitis
- Bronchoalveolar lavage
- Bronchoalveolar lavage fluid
- Bronchocele
- Bronchoconstriction
- Bronchodilatation
- Bronchodilators
- Bronchogenic cyst
- Bronchography
- Bronchomalacia
- Bronchophony
- Bronchopleural fistula
- Bronchopneumonia
- Bronchopulmonary dysplasia
- Bronchopulmonary segment
- Bronchopulmonary segments
- Bronchorrhea
- Bronchoscopy
- Bronchospasm
- Bronopol
- Broselow tape
- Broth microdilution
- Broviac catheter
- Brown adipose tissue
- Brown syndrome
- Brown tumor
- Brown's syndrome
- Brown-Sequard syndrome
- Brown-Séquard syndrome
- Brown-Vialetto-Van Laere syndrome
- Brown–Vialetto–Van Laere syndrome
- Bruce protocol
- Brucella
- Brucella abortus
- Brucella canis
- Brucella suis
- Brucellosis
- Bruch membrane
- Bruch's membrane
- Brucine
- Brucite
- Brudzinski's sign
- Brugada syndrome
- Brugia
- Brugia malayi
- Brugia timori
- Brugmansia
- Bruise
- Bruising
- Bruit
- Brunner's glands
- Brush border
- Brushfield spots
- Bruton tyrosine kinase
- Bruton's tyrosine kinase
- Bruxism
- Bryonia
- Bryophyllum pinnatum
- Bryostatin
- Bubble CPAP
- Buboes
- Bubonic plague
- Buccal administration
- Buccal artery
- Buccal branch
- Buccal branch of the facial nerve
- Buccal cavity
- Buccal fat pad
- Buccal mucosa
- Buccal nerve
- Buccal space
- Buccal swab
- Buccinator muscle
- Buccopharyngeal fascia
- Bucillamine
- Bucindolol
- Buck's fascia
- Buckling
- Buckminsterfullerene
- Budd-Chiari syndrome
- Budding
- Budding yeast
- Budesonide
- Buerger's disease
- Bufalin
- Bufexamac
- Buffalopox
- Buffers
- Buffy coat