China 
Africa 
- Fetor hepaticus
- Fetoscopy
- Fetuin
- Fetus in fetu
- Fever
- Fever of unknown origin
- Fexinidazole
- Fexofenadine
- Fexofenadine hydrochloride
- Fialuridine
- Fiber diffraction
- Fiber lasers
- Fiber-reinforced composite
- Fiberscope
- Fibrates
- Fibre supplements
- Fibre-reinforced plastic
- Fibrillarin
- Fibrillation
- Fibrillin
- Fibrillogenesis
- Fibrin
- Fibrin glue
- Fibrin scaffold
- Fibrinogen
- Fibrinoid necrosis
- Fibrinolysin
- Fibrinolysis
- Fibrinolytic factor
- Fibrinolytic system
- Fibrinolytic therapy
- Fibrinopeptide
- FibroTest
- Fibroadenomas
- Fibroblast growth factor 23
- Fibroblast growth factor receptor
- Fibroblast growth factor receptor 2
- Fibroblast-like synoviocyte
- Fibroblasts
- Fibrocartilage
- Fibrocystic breast disease
- Fibrocystin
- Fibroepithelial
- Fibrogenesis
- Fibroids
- Fibrolamellar
- Fibrolamellar hepatocellular carcinoma
- Fibroma
- Fibromatosis
- Fibromodulin
- Fibromuscular dysplasia
- Fibromyalgia
- Fibronectin
- Fibronectin binding protein A
- Fibronectin type III domain
- Fibrosarcoma
- Fibrosing colonopathy
- Fibrosis
- Fibrotest
- Fibrothorax
- Fibrous ankylosis
- Fibrous cap
- Fibrous capsule
- Fibrous dysplasia
- Fibrous pericardium
- Fibrous proteins
- Fibrous tissue
- Fibula fracture
- Fibular
- Fibular artery
- Fibular hemimelia
- Fibularis brevis
- Fibularis longus
- Fibulin
- Ficain
- Ficin
- Fick principle
- Ficolin
- Ficoll
- Ficus religiosa
- Fidaxomicin
- Fiddler's neck
- Fidgeting
- Fiducial inference
- Fiducial markers
- Field cancerization
- Field dependence
- Field desorption
- Field experiment
- Field flow fractionation
- Field of view
- Field triage
- Fifth disease
- Fifth lumbar vertebra
- Fifth metacarpal bone
- Fight or flight response
- Figure-Ground
- Filaggrin
- Filamentation
- Filaments
- Filamin
- Filariasis
- Filarioidea
- Filgotinib
- Filgrastim
- Filial therapy
- Filiform papillae
- Filipendula ulmaria
- Filler
- Filling-in
- Film coating
- Film-forming agent
- Filopodia
- Filorexant
- Filoviridae
- Filovirus
- Filter bubble
- Filter paper
- Filtration
- Filtration fraction
- Filum terminale
- Fimbriae
- Fimbrin
- Finasteride
- Fine chemicals
- Fine motor skills
- Fine needle aspiration
- Finegoldia
- Finerenone
- Finger
- Finger Tip Unit
- Finger agnosia
- Finger tracking
- Fingerprints
- Fingerspelling
- Fingerstick
- Fingertip
- Fingolimod
- Finite-difference time-domain method
- Fioricet
- Fipronil
- Fire retardant
- Firefighters
- Firefly luciferase
- Firefly luciferin
- Firing rate
- Firmicutes
- First 1000 days
- First aid
- First cervical vertebra