Food Poisoning: Gastrointestinal Amebiasis Finger or Toe Amputation Female Genital Mutilation Fiber Food Additives and Contaminants Folate (Folic Acid) Fluoride Food Allergy First Few Days Feeding Fragile X Syndrome Fussiness, Excessive Crying, and Colic Feeding Problems Fever Failure to Thrive Fabry Disease Facioscapulohumeral Muscular Dystrophy Factor XIII Deficiency Familial Adenomatous Polyposis Familial Cold Autoinflammatory Syndrome Familial Eosinophilic Cellulitis Familial Hypercholesterolemia Familial Idiopathic Basal Ganglia Calcification Familial Juvenile Hyperuricemic Nephropathy Familial Lipoprotein Lipase Deficiency Farber's Disease Fascioliasis Felty Syndrome Femoral Facial Syndrome Fetal Alcohol Syndrome Fetal Hydantoin Syndrome Fetal Retinoid Syndrome Fetal Valproate Syndrome FG Syndrome Type 1 Fiber Type Disproportion, Congenital Fibrodysplasia Ossificans Progressiva (FOP) Fibromatosis, Congenital Generalized Fibromuscular Dysplasia Fibromyalgia Fibrosing Mediastinitis Filariasis Filippi Syndrome Fitz Hugh Curtis Syndrome Floating Harbor Syndrome Focal Dermal Hypoplasia Forbes Disease Formaldehyde Poisoning Fountain Syndrome Fournier Gangrene Fox Fordyce Disease Fragile X Syndrome Fraser Syndrome Freeman Sheldon Syndrome Frey's Syndrome Froelich's Syndrome Frontofacionasal Dysplasia Frontonasal Dysplasia Fructose Intolerance, Hereditary Fructosuria Fryns Syndrome Fucosidosis Fukuyama Type Congenital Muscular Dystrophy