• Fabry disease
  • Facial nerve palsy
  • Factitious disorders
  • Failure to thrive
  • Fainting
  • Familial adenomatous polyposis syndromes
  • Familial Mediterranean fever
  • FAP [familial adenomatous polyposis syndromes]
  • Farmer's lung
  • FAS [fetal alcohol syndrome]
  • Fatty liver
  • Fatty stools (evaluation of)
  • FD [non-ulcer dyspepsia]
  • Febrile neutropenia
  • Febrile seizures
  • Fecal incontinence in adults
  • Fecal incontinence in children
  • Feeding difficulty in infants
  • Felty syndrome
  • Femoral neck fracture
  • Fertility disorders, female
  • Fertility disorders, male
  • Fetal alcohol spectrum disorders
  • Fever blisters
  • Fever of unknown origin (evaluation of)
  • Fever, neutropenic
  • Fever, postoperative (evaluation of)
  • Fibrocystic breasts
  • Fibromyalgia
  • Fibromyalgia, chronic pain
  • Fifth disease
  • Finger dislocation
  • Fingernail fungus
  • Fissured tongue
  • Fissured, hairy, and geographic tongue
  • Fixed drug eruption
  • Flail chest
  • Flu, avian (H5N1)
  • Flu, seasonal
  • FMF [familial Mediterranean fever]
  • Focal atrial tachycardia
  • Focal segmental glomerulosclerosis
  • Focal seizures
  • Folate deficiency
  • Follicular carcinoma, thyroid
  • Folliculitis
  • Food allergy
  • Food poisoning
  • Food poisoning, botulism
  • Foodborne E. coli infection
  • Foreign body aspiration
  • Foreign body ingestion
  • Foxglove ingestion
  • Fracture
  • Frontotemporal dementia
  • Frostbite
  • Frozen shoulder
  • FSG [focal segmental glomerulosclerosis]
  • FTT [failure to thrive]
  • Functional bowel disease
  • Functional dyspepsia
  • Fungal meningitis
  • Fungal skin infections
  • Fungemia
  • FUO [fever of unknown origin] (evaluation of)