F
- FLNB- related disorders
- FOLR1 deficiency
- FOP
- Flat Umbilicus Familial
- Flaujeac Factor Deficiency
- Fleck corneal dystrophy
- Floating Harbor Syndrome
- Floating-Harbor Syndrome
- Florid papillomatosis of the nipple
- Flynn Aird Syndrome
- Focal Cortical Dysplasia of Taylor
- Focal Dermal Hypoplasia
- Focal Dystonia
- Focal facial dermal dysplasia 1
- Foix Chavany Marie syndrome
- Follicle-Stimulating Hormone Deficiency, Isolated
- Follicular Dendritic Cell Tumor
- Follicular Lymphoma
- Fonseca’s disease
- Formiminoglutamic acidemia
- Formiminotransferase deficiency
- Forney Robinson Pascoe Syndrome
- Fountain Syndrome
- Foveal hypoplasia and presenile cataract syndrome
- Fox-Fordyce Disease
