- Fear of flying
- Fear of intimacy
- Fear of medical procedures
- Fear of needles
- Fear of negative evaluation
- Fear of the dark
- Fear-potentiated startle
- Feathery degeneration
- Feature integration theory
- Febrile neutropenia
- Febrile seizures
- Febris
- Febuxostat
- Fecal calprotectin
- Fecal coliforms
- Fecal immunochemical test
- Fecal impaction
- Fecal incontinence
- Fecal microbiota transplantation
- Fecal occult blood
- Fecal oral route
- Feces
- Fechtner syndrome
- Fecundity
- Federal Institute for Drugs and Medical Devices
- Fedratinib
- Fee splitting
- Feeding behavior
- Feeding behaviour
- Feeding disorder
- Feeding tube
- Feighner Criteria
- Feingold diet
- Feingold syndrome
- Fel d 1
- Felbamate
- Feldenkrais Method
- Feline calicivirus
- Feline infectious peritonitis
- Feline leukemia virus
- Feline panleukopenia
- Felodipine
- Felty's syndrome
- Felypressin
- Female condoms
- Female ejaculation
- Female genital disease
- Female genitalia
- Female infertility
- Female reproductive system
- Female reproductive tract
- Female sexual arousal disorder
- Female sexual dysfunction
- Female sterilization
- Feminist psychology
- Feminist therapy
- Feminization
- Feminizing hormone therapy
- Femoral artery
- Femoral canal
- Femoral condyle
- Femoral fracture
- Femoral head
- Femoral hernia
- Femoral neck
- Femoral nerve
- Femoral ring
- Femoral shaft
- Femoral sheath
- Femoral triangle
- Femoral vein
- Femoroacetabular impingement
- Femoxetine
- Femtosecond laser
- Femur
- Femur fracture
- Fenamic acid
- Fenbendazole
- Fenbufen
- Fenchone
- Fenestra
- Fenethylline
- Fenfluramine
- Fenitrothion
- Fennel
- Fenofibrate
- Fenoldopam
- Fenoprofen
- Fenretinide
- Fentanyl
- Fentanyl citrate
- Fenthion
- Fenton reaction
- Fenugreek
- Fenvalerate
- Ferguson reflex
- Fermentation
- Fermented dairy products
- Fermented food
- Fermented milk
- Ferredoxin-NADP reductase
- Ferredoxins
- Ferric EDTA
- Ferric chloride
- Ferric ferrocyanide
- Ferric oxide
- Ferric reducing ability of plasma
- Ferrichrome
- Ferriman-Gallwey score
- Ferritin
- Ferrochelatase
- Ferroportin
- Ferroptosis
- Ferrous fumarate
- Ferrous gluconate
- Ferrous sulfate
- Ferroxidase
- Ferruginol
- Fertility
- Fertility awareness
- Fertility preservation
- Fertility tourism
- Fertilization
- Ferula
- Ferulic acid
- Fesoterodine
- Fetal
- Fetal alcohol syndrome
- Fetal bovine serum
- Fetal circulation
- Fetal death
- Fetal distress
- Fetal echocardiography
- Fetal fibronectin
- Fetal head
- Fetal heart
- Fetal heart rate
- Fetal heartbeat
- Fetal hemoglobin
- Fetal hypoxia
- Fetal membranes
- Fetal pole
- Fetal programming
- Fetal protein
- Fetal resorption
- Fetal rights
- Fetal surgery
- Fetal viability
- Fetishes
- Fetor