Solar dermatitis/Sun poisoning Sore throat Spastic colon Spells Sperm antobody, male Sperm illiquefaction/low motility Spermatorrhea Sphenopalatine neuralgia Spinal cord trauma Spinal cord syphilis Spinocerebellar ataxia Spondylitis, ankylosing Sponge kidney Spontaneous abortion Sprains and Strains Spur, calcaneal Steinert's disease Stein-Leventhal syndrome Stenocardia Stenosis of anus Stenosis of lumbar vertebral canal Sterility, female Sterility, male Still's disease Stomach cancer Stomach polyps Stomachache Stomachic calculus Stomatitis, herpetic Stomatitis, recurrent aphthous Stone in kidney Strawberry nevus Stroke Stye Subarachnoid hemorrhage Subareolar abscess Subdural hematoma, traumatic Subretinal neovasculariztion Superficial gastritis, chronic Superficial thrombophlebitis Superior mesenteric artery syndrome Suppurative otitis media Suppurative parotitis Supraventricular tachycardia Sycosis Synovitis Synovitis of hip, transient Syphilis Syringomyelia Systemic lupus erythematosus (SLE)