Substance abuse and dependence

Sudden Infant Death Syndrome

Sudden cardiac death

Suicide

Sulfonamides

Sunburn

Sunscreens

Support groups

Surgical body sculpting

Surgical instruments

Sushruta

Sweating

Sydenham's Chorea

Syphilis

Syringe

Systemic lupus erythematosus

TORCH test

Tai chi

Tapeworm diseases

Taste

Tattoo

Tay-Sachs disease

Temporary Assistance for Needy Families

Temporomandibular joint disorders

Tendinitis

Tennis elbow

Teratogen

Testicular cancer

Testicular self-examination

Testicular torsion

Tetanus

Tetracyclines

Tetralogy of Fallot

Thalassemia

Threadworm infection

Throat culture

Thrombocytopenia

Thrombocytosis

Thrombophlebitis

Thyroid cancer

Thyroid disorders

Thyroid function tests

Thyroid hormones

Tinnitus

Tissue typing

Tonsillectomy and adenoidectomy

Tonsillitis

Tooth decay

Tooth extraction

Tooth replacements and restorations