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- Salmonella enteritidis
- Scabies
- Scarlet fever
- Shigella dysenteriae
- Sinuses
- Sinusitis
- Skeleton with labels
- Skin
- Skin bacterial infections
- Skull
- Sleep - How much does my child need?
- Sleep apnea
- Small intestines
- Snake Bites
- Snot, buggers and phlegm
- Sore throat
- Soy Milk Formulas
- Spine
- Spit
- Spleen
- Sports supplements for kids
- Staphylococcus aureus
- Staphylococcus epidermidis
- Stomach
- Stool Holding
- Strains and Sprains
- Streptococcus mutans
- Streptococcus pneumoniae
- Streptococcus pyogenes
- Sun Exposure Risks
- Swallowed coins and other objects
- Sweat
- Swimmer's ear (otitis externa)
- Swine flu in children
- Syphilis

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