Babesiosis
Bacterial keratitis
Bacterial vaginosis
Barrett's esophagus
Bartonella quintana infection
Basal cell carcinoma
Behavioral and psychological symptoms of dementia
Behçet's syndrome
Bell's palsy
Benign paroxysmal positional vertigo
Benign prostatic hyperplasia
Benzodiazepine use disorder
Beta-blocker toxicity
Bicuspid aortic valve
Bile acid diarrhea
Biliary stricture
Binge eating disorder
Bipolar disorder
Birt-Hogg-Dubé syndrome
BK polyomavirus-associated hemorrhagic cystitis
BK polyomavirus-associated nephropathy
Bladder cancer
Bladder outlet obstruction
Bladder stones
Bladder trauma
Bleeding in patients on antithrombotics
Blepharitis
Blepharoptosis
Blood gas analysis
Blunt abdominal trauma
Blunt cardiac injury
Blunt chest trauma
Bone metastasis
Bone stress injuries
Borderline personality disorder
Botulism
Bowel trauma
Bowen disease
Brain abscess
Brain death
Brain metastasis
Breast cancer
Breastfeeding
Bronchiectasis
Bronchiolitis obliterans syndrome
Bronchopulmonary neuroendocrine tumors
Brugada syndrome
Budd-Chiari syndrome
Bulimia nervosa
Burkitt lymphoma
Burn injury