Pathology
- Status Epilepticus
- stenosis
- Stockholm syndrome
- Stomach cancer
- Stomatitis
- strabismus
- strangulation
- strangury
- Street Value
- Streptococcal infections
- streptococcal sore throat
- Stridor
- stroke
- Sturge-Weber Syndrome
- sty
- Subacute sclerosing panencephalitis
- Subdural Hematoma
- sudden infant death syndrome
- suffocation
- suffocation disease