- Facial Injuries and Disorders
- Failure to Thrive see Growth Disorders
- Fainting
- Fallopian Tube Cancer see Ovarian Cancer
- Falls
- False Teeth see Dentures
- Familial Combined Hyperlipidemia see Cholesterol; Cholesterol Levels: What You Need to Know; Triglycerides
- Familial Dysbetalipoproteinemia see Cholesterol; Cholesterol Levels: What You Need to Know
- Familial Hypercholesterolemia see Cholesterol; Cholesterol Levels: What You Need to Know
- Familial Hypertriglyceridemia see Triglycerides
- Family History
- Family Issues
- Family Planning see Birth Control
- Fanconi Anemia see Aplastic Anemia
- Farmer's Lung see Interstitial Lung Diseases
- Farsightedness see Refractive Errors
- FAS see Fetal Alcohol Spectrum Disorders
- Fatigue
- Fats, Dietary see Dietary Fats
- Fatty Liver Disease
- Fecal Impaction see Intestinal Obstruction
- Female Circumcision see Sexual Problems in Women
- Female Infertility
- Female Sexual Dysfunction see Sexual Problems in Women
- Female Sterilization see Tubal Ligation
- Ferritin see Iron
- Fertility see Infertility; Preconception Care
- Fetal Alcohol Spectrum Disorders
- Fetal Alcohol Syndrome see Fetal Alcohol Spectrum Disorders
- Fetal Health and Development
- Fetal Ultrasound see Prenatal Testing
- Fever
- Fever Blister see Cold Sores
- Fiber see Dietary Fiber
- Fibrocystic Breast Disease see Breast Diseases
- Fibroids see Uterine Fibroids
- Fibromyalgia
- Fifth Disease
- Financial Assistance
- Finding health sources I can trust see Evaluating Health Information
- Finding trustworthy information see Evaluating Health Information
- Finger Injuries and Disorders
- Fingernails see Nail Diseases
- Fire Safety
- First Aid
- Fistulas
- Fitness see Exercise and Physical Fitness; Exercise for Children; Exercise for Older Adults; Sports Fitness
- Flatulence see Gas
- Flea Bites see Insect Bites and Stings
- Flesh-Eating Bacteria see Bacterial Infections
- Floater see Retinal Disorders
- Floods
- Flu
- Flu Shot
- Fluid and Electrolyte Balance
- Folate see Folic Acid
- Folic Acid
- Folliculitis see Hair Problems
- Food Additives see Nutrition
- Food Allergy
- Food Labeling
- Food Poisoning see Foodborne Illness
- Food Safety
- Foodborne Illness
- Foot Health
- Foot Injuries and Disorders
- Foreign Bodies
- Fractures
- Fragile X Syndrome
- FRAXA see Fragile X Syndrome
- Friedreich Ataxia
- Frostbite
- Frostnip see Frostbite
- Frozen Shoulder see Shoulder Injuries and Disorders
- Fungal Infections
- Fungicides see Pesticides
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