| SMA20 |
| SMA7 |
| SMAC20 |
| SMAC7 |
| Small bowel bacterial overgrowth |
| Small bowel biopsy |
| Small bowel enema |
| Small bowel resection |
| Small bowel tissue biopsy smear |
| Small cell lung cancer |
| Small for gestational age (SGA) |
| Small intestine aspirate and culture |
| Small intestine insufficiency |
| Small intestine surgery |
| Small non-cleaved cell lymphoma |
| Smallpox |
| Smashed fingers |
| Smear of duodenal fluid aspirate |
| Smell – impaired |
| Smokeless snuff |
| Smoker’s keratosis |
| Smoking – tips on how to quit |
| Smoking and smokeless tobacco |
| Smoking cessation |
| Smoking hazards |
| Snake bites |
| Sneezing |
| Snoring |
| Soap – swallowing |
| Soap ingestion |
| Social phobia |
| Sociopathic personality |
| Soda ash poisoning |
| Soda loading |
| Sodium – blood |
| Sodium – urine |
| Sodium bicarbonate |
| Sodium bisulfate |
| Sodium carbonate poisoning |
| Sodium hydroxide poisoning |
| Sodium hypochlorite poisoning |
| Sodium in diet |
| Sodium orthophosphate poisoning |
| Sodoku |
| Soft spot – bulging |
| Soft spot – large |
| Soft spot – sunken |
| Soft tissue gangrene |
| Soft tissue sarcoma |
| Soiling |
| Solanum tuberosum poisoning |
| Solar keratosis |
| Solder |
| Solitary pulmonary nodule |
| Soluble vs. insoluble fiber |
| Somatic |
| Somatization disorder |
| Somatoform pain disorder |
| Somatotroph adenoma |
| Sominex overdose |
| Somnambulism |
| Somnolence |
| Sonogram |
| Sonohysterography |
| Sopental overdose |
| Sore throat |
| Sores on the female genitals |
| Sores or ulcers on the male genitals |
| Soy |
| Sparklelan poisoning |
| Spasm of the esophagus |
| Spasmodic bladder |
| Spasmodic croup |
| Spasmodic dysphonia |
| Spasms of the hands or feet |
| Spasmus nutans |
| Spastic colon |
| Spastic paralysis |
| Spasticity |
| Specks in the eye |
| Spectracide poisoning |
| Speech disorders |
| Speech impairment (adult) |
| Spell – newborns |
| Sperm count |
| Spermatocele |
| Spherocytosis |
| Sphingomyelinase deficiency |
| Spider angioma |
| Spider bite |
| Spider fingers |
| Spielmeyer-Vogt |
| Spina bifida |
| Spina bifida – resources |
| Spina bifida repair |
| Spinal abscess |
| Spinal cord abscess |
| Spinal cord injury |
| Spinal cord scan |
| Spinal cord trauma |
| Spinal CT |
| Spinal curvature |
| Spinal fluid culture |
| Spinal fluid smear |
| Spinal fusion |
| Spinal injury |
| Spinal injury – resources |
| Spinal microdiskectomy |
| Spinal muscular atrophy |
| Spinal stenosis |
| Spinal surgery – cervical |
| Spinal surgery – lumbar |
| Spinal tap |
| Spinal tumor |
| Spine MRI |
| Spine x-ray |
| Spinocerebellar degeneration |
| Spirillary fever |
| Spirogram |
| Spirometry |
| Spitting up |
| Spitting up blood |
| Spleen enlargement |
| Spleen removal |
| Splenectomy |
| Splenectomy – post-surgery syndrome |
| Splenic infarction |
| Splenomegalic polycythemia |
| Splenomegaly |
| Splint – instructions |
| Splinter hemorrhages |
| Splinter removal |
| Spondylarthropathy |
| Spondylitis |
| Spondylolisthesis |
| Spongy degeneration of the brain |
| Spontaneous abortion |
| Spontaneous bacterial peritonitis (SBP) |
| Spontaneous pneumothorax |
| Spoon nails |
| Sporadic primary pulmonary hypertension |
| Spores |
| Sporotrichosis |
| Sports cream overdose |
| Spotted fever |
| Spotting |
| Sprains |
| Sprue |
| Sputum culture |
| Sputum direct fluorescent antibody (DFA) |
| Sputum gram stain |
| Sputum smear (KOH test) |
| Sputum stain for mycobacteria |
| Squamous cell cancer – mouth |
| Squamous cell cancer – penis |
| Squamous cell skin cancer |
| Squint |
| SSPE |
| St. Vitus dance |
| Stable angina |
| Stage 1 Lyme disease |
| Stage 2 Lyme disease |
| Stage 3 Lyme disease |
| Stagnant loop syndrome |
| Standard ophthalmic exam |
| Staph aureus food poisoning |
| Staph skin infection |
| Staphylococcal meningitis |
| Staphylococcal scalded skin syndrome (SSS) |
| Staphylococcal toxic shock syndrome |
| Starch ingestion |
| Starches |
| Startle reflex |
| Startle response |
| Stasis dermatitis and ulcers |
| Stasis syndrome |
| Static lung volume determination |
| Steam iron cleaner |
| Steely hair disease |
| Stein-Leventhal syndrome |
| Stellachrome poisoning |
| Stem cell research |
| Stenosis – renal artery |
| Stent |
| Stereotactic radiosurgery |
| Stereotypic movement disorder |
| Sterile meningitis |
| Sterilization surgery – female |
| Sterilization surgery – making a decision |
| Sterilization surgery – male |
| Sternal tap |
| Sternutation |
| Stevens-Johnson syndrome |
| Stiff heart syndrome |
| Stiff lung |
| Stiffness in a joint |
| Still’s disease |
| Still’s disease – adult |
| Stillbirth |
| Stimulants |
| Stimulus |
| Stingray |
| Stings – marine animals |
| Stoddard solvent poisoning |
| Stomach acid test |
| Stomach cancer |
| Stomach flu |
| Stomach pain |
| Stomach pumping |
| Stomach tube insertion |
| Stomach ulcer |
| Stomach upset |
| Stomachache |
| Stomatitis – herpetic |
| Stomatitis – ulcerative |
| Stonefish |
| Stones – bladder |
| Stones – cystine |
| Stones – kidney |
| Stool – trypsin and chymotrypsin |
| Stool C. difficile toxin |
| Stool culture |
| Stool gram stain |
| Stool guaiac test |
| Stool occult blood test |
| Stool occult blood test – flushable home test |
| Stool occult blood test – guaiac smear |
| Stool ova and parasites exam |
| Stool smear |
| Stools – black or tarry |
| Stools – bloody |
| Stools – floating |
| Stools – foul smelling |
| Stools – pale or clay colored |
| Stools – watery |
| Storage pool disease |
| Storing medicine safely |
| Stork bite |
| Strabismus |
| Strabismus repair |
| Straddle injury |
| Strains |
| Stratigraphy |
| Strawberry mark |
| Strawberry nevus |
| Streeter’s dysplasia |
| Strep throat |
| Streptobacillary fever |
| Streptobacillosis |
| Streptococcal pharyngitis |
| Streptococcal proctitis |
| Streptococcal screen |
| Stress |
| Stress and anxiety |
| Stress and backaches |
| Stress ECG |
| Stress echocardiography |
| Stress fracture |
| Stress gastritis |
| Stress in childhood |
| Stress incontinence |
| Stress management |
| Stress reduction and exercise |
| Stress test – echocardiography |
| Stress test – exercise treadmill |
| Stress ulcer |
| Stress vs. anxiety |
| Stretch marks |
| Striae |
| Striae atrophica |
| Striae distensae |
| Stridor |
| String test |
| Stroke |
| Stroke – hemorrhagic |
| Stroke – ischemic |
| Stroke related to cocaine use |
| Stroke secondary to atherosclerosis |
| Stroke secondary to atrial fibrillation |
| Stroke secondary to cardiogenic embolism |
| Stroke secondary to carotid dissection |
| Stroke secondary to carotid stenosis |
| Stroke secondary to FMD |
| Stroke secondary to syphilis |
| Stromal tumor |
| Strongyloidiasis |
| Struma lymphomatosa |
| Stuart-Prower deficiency |
| Stuffy nose |
| Stuporous |
| Sturge-Weber syndrome |
| Stuttering |
| Stuttering and children |
| Stuttgart disease |
| Stye |
| Subacute combined degeneration |
| Subacute combined degeneration of the spinal cord |
| Subacute lymphocytic thyroiditis |
| Subacute sclerosing leukoencephalitis |
| Subacute sclerosing panencephalitis |
| Subacute thyroiditis |
| Subarachnoid hemorrhage |
| Subareolar abscess |
| Subclavian artery occlusive syndrome |
| Subclavian steal syndrome |
| Subconjunctival hemorrhage |
| Subcutaneous |
| Subcutaneous abscess |
| Subcutaneous air |
| Subcutaneous emphysema |
| Subdural effusion |
| Subdural hematoma |
| Subdural hematoma – chronic |
| Subdural hemorrhage |
| Subdural hemorrhage – chronic |
| Subfalcine herniation |
| Sublingual space infection |
| Submandibular space infection |
| Substance abuse |
| Substance abuse recovery and diet |
| Substernal thyroid |
| Subungual warts |
| Sucrose hemolysis test |
| Suction curettage |
| Sudden infant death syndrome |
| Sudden sniffing death syndrome |
| Sugar-water hemolysis test |
| Sugars |
| Suicide and suicidal behavior |
| Sulfhemoglobin |
| Sulfite poisoning |
| Sulfuric acid poisoning |
| Sulindac overdose |
| Sun-induced skin changes – keratosis |
| Sun-induced skin changes – liver spots |
| Sunburn |
| Sunburn first aid |
| Sunken fontanelles |
| Sunscreen – swallowing |
| Super glue |
| Superficial thrombophlebitis |
| Superior vena cava obstruction |
| Superior vena cava syndrome |
| Supernumerary digits |
| Supernumerary nipples |
| Support groups – by disease and condition |
| Supracervical hysterectomy |
| Supraglottitis |
| Supranuclear ophthalmoplegia |
| Suprapubic catheters |
| Suprapubic prostatectomy |
| Supraventricular tachycardia |
| Surface echo |
| Surgeon – how to choose a good one |
| Surgeries for female stress incontinence |
| Surgery – brain |
| Surgery using laser |
| Surgical excision |
| Sutures – cranial |
| Sutures – ridged |
| Sutures – separated |
| SVC obstruction |
| Swab for respiratory viruses |
| Swab for Staph carriage |
| Swallowing difficulty |
| Swallowing pain or burning |
| Swamp fever |
| Swan-Ganz – right heart catheterization |
| Swayback |
| Sweat – cold |
| Sweat chloride |
| Sweat electrolytes test |
| Sweat test |
| Sweating |
| Sweating – absent |
| Sweating – excessive |
| Sweeteners |
| Swelling |
| Swelling in the abdomen |
| Swelling of a joint |
| Swelling of the ankles – feet – legs |
| Swelling of the face |
| Swelling of the scrotum |
| Swimmer’s ear |
| Swimmer’s ear – chronic |
| Swimmer’s itch |
| Swimmer’s shoulder |
| Swimming pool cleaners |
| Swimming pool granuloma |
| Swineherd’s disease |
| Swollen belly |
| Swollen eye or conjunctiva |
| Swollen glands |
| Swollen gums |
| Swollen lymph nodes |
| Sydenham chorea |
| Sympathectomy – Endoscopic thoracic |
| Sympathomimetic intoxication |
| Symptomatic |
| Syncope |
| Syndactyly |
| Syndactyly repair |
| Syndrome X |
| Synovectomy |
| Synovial biopsy |
| Synovial fluid analysis |
| Synovitis – toxic |
| Syphilis |
| Syphilis – primary |
| Syphilis – secondary |
| Syphilis – tertiary |
| Syphilitic aneurysm |
| Syphilitic aseptic meningitis |
| Syphilitic myelopathy |
| Syphilitic stroke |
| Syringomyelia |
| Syrinx |
| Systemic |
| Systemic histoplasmosis |
| Systemic inflammatory response syndrome (SIRS) |
| Systemic lupus erythematosus |
| Systemic sclerosis |
| Systolic blood pressure |
| Systolic click-murmur syndrome |
