S

• Sacral dimple
• Sacroiliitis
• SAD (See: Seasonal affective disorder (SAD))
• Salivary gland cancer
• Salmonella infection
• Sarcoidosis
• Sarcoma, bone cancer (See: Bone cancer)
• Sarcoma, soft tissue (See: Soft tissue sarcoma)
• SARS (See: Severe acute respiratory syndrome (SARS))
• Scabies
• SCAD (See: Spontaneous coronary artery dissection)
• Scalded mouth syndrome (See: Burning mouth syndrome)
• Scarlatina (See: Scarlet fever)
• Scarlet fever
• Schizoaffective disorder
• Schizoid personality disorder
• Schizophrenia
• Schizophrenia, adolescent (See: Childhood schizophrenia)
• Schizophrenia, catatonic (See: Catatonic schizophrenia)
• Schizophrenia, childhood (See: Childhood schizophrenia)
• Schizophrenia, disorganized (See: Disorganized schizophrenia)
• Schizophrenia, hebephrenic (See: Disorganized schizophrenia)
• Schizophrenia, juvenile (See: Childhood schizophrenia)
• Schizophrenia, paranoid (See: Paranoid schizophrenia)
• Schizotypal personality disorder
• Sciatica
• Scleroderma
• Scleroderma, limited (See: Limited scleroderma (CREST syndrome))
• Sclerosing cholangitis (See: Primary sclerosing cholangitis)
• Sclerosis, amyotrophic lateral (See: Amyotrophic lateral sclerosis)
• Sclerosis, multiple (See: Multiple sclerosis)
• Sclerosis, systemic (See: Scleroderma)
• Scoliosis
• Scorpion stings
• Scrotal masses
• Seasonal affective disorder (SAD)
• Seasonal allergy (See: Hay fever)
• Sebaceous cysts (See: Epidermoid (sebaceous) cysts)
• Seborrheic dermatitis
• Seborrheic keratosis
• Secondary high blood pressure (See: Secondary hypertension)
• Secondary hypertension
• Seizure disorder (See: Epilepsy)
• Seizure, absence (See: Absence seizure)
• Seizure, febrile (See: Febrile seizure)
• Seizure, grand mal (See: Grand mal seizure)
• Seizure, petit mal (See: Absence seizure)
• Seizure, temporal lobe (See: Temporal lobe seizure)
• Self-injury/cutting
• Semen allergy
• Separated shoulder
• Separation anxiety
• Sepsis
• Septal defect, atrial (See: Atrial septal defect)
• Septal defect, atrioventricular (See: Atrioventricular canal defect)
• Septal defect, ventricular (See: Ventricular septal defect)
• Septic arthritis
• Serotonin syndrome
• Severe acute respiratory syndrome (See: Severe acute respiratory syndrome (SARS))
• Severe acute respiratory syndrome (SARS)
• Severe brain injury, coma (See: Coma)
• Sex headache (See: Sex headaches)
• Sex headaches
• Sexual dysfunction, female (See: Female sexual dysfunction)
• Sexual obsession (See: Compulsive sexual behavior)
• Sexually transmitted diseases
• Shaken baby syndrome
• Sheehan's syndrome
• Shellfish allergy
• Shigella infection
• Shin splints
• Shingles
• Short stature (See: Dwarfism)
• Shoulder dislocation (See: Dislocated shoulder)
• Shoulder separation (See: Separated shoulder)
• Shy-Drager syndrome (See: Multiple system atrophy (MSA))
• Sick sinus syndrome
• Sickle cell anemia
• SIDS (See: Sudden infant death syndrome (SIDS))
• Sin Nombre virus infection (See: Hantavirus pulmonary syndrome)
• Sinus headache (See: Sinus headaches)
• Sinus headaches
• Sinusitis, acute (See: Acute sinusitis)
• Sinusitis, chronic (See: Chronic sinusitis)
• Sjogren's syndrome
• Skin cancer
• Skin cancer, melanoma (See: Melanoma)
• Skin, dry (See: Dry skin)
• Skin, itchy (See: Itchy skin (pruritus))
• Skipped heartbeats (See: Heart palpitations)
• Slapped cheek disease (See: Parvovirus infection)
• Sleep apnea
• Sleep apnea, central
• Sleep apnea, obstructive
• Sleep terrors (See: Sleep terrors (night terrors))
• Sleep terrors (night terrors)
• Sleepiness, daytime (See: Narcolepsy)
• Sleeplessness (See: Insomnia)
• Sleepwalking
• Slipped disk (See: Herniated disk)
• Slow heartbeat (See: Bradycardia)
• Small bowel prolapse (enterocele)
• Small vessel disease
• Smallpox
• Smoking (See: Nicotine dependence)
• Snoring
• Social anxiety disorder
• Social anxiety disorder (social phobia) (See: Social anxiety disorder)
• Sociopathic personality (See: Antisocial personality disorder)
• Soft tissue sarcoma
• Solar keratosis (See: Actinic keratosis)
• Solar lentigines (See: Age spots (liver spots))
• Solitary rectal ulcer syndrome
• Somnambulism (See: Sleepwalking)
• Sore throat
• Soy allergy
• Spasmodic torticollis (See: Cervical dystonia)
• Specific reading disability (See: Dyslexia)
• Spermatocele
• Spider bites
• Spina bifida
• Spinal cord injury
• Spinal curvature (See: Scoliosis)
• Spinal headache (See: Spinal headaches)
• Spinal headaches
• Spinal stenosis
• Spinal tumor
• Splenomegaly (See: Enlarged spleen)
• Spondylitis (See: Ankylosing spondylitis)
• Spondylosis, cervical (See: Cervical spondylosis)
• Spontaneous coronary artery dissection
• Sprained ankle
• Sprains and strains
• Sprue, celiac (See: Celiac disease)
• Squamous cell carcinoma
• Stable angina (See: Angina)
• Stagnant syndrome (See: Blind loop syndrome)
• Stammering (See: Stuttering)
• Staph infections
• Statis syndrome (See: Blind loop syndrome)
• STDs (See: Sexually transmitted diseases)
• Steatosis (See: Nonalcoholic fatty liver disease)
• Steele-Richardson-Olszewski syndrome (See: Progressive supranuclear palsy)
• Stein-Leventhal syndrome (See: Polycystic ovary syndrome)
• Stenosing tenosynovitis (See: Trigger finger)
• Stenosis, aortic valve (See: Aortic valve stenosis)
• Stenosis, mitral valve (See: Mitral valve stenosis)
• Stenosis, pulmonary valve (See: Pulmonary valve stenosis)
• Stenosis, pyloric (See: Pyloric stenosis)
• Stenosis, spinal (See: Spinal stenosis)
• Stevens-Johnson syndrome
• Stickler syndrome
• Still's disease (See: Juvenile rheumatoid arthritis)
• Stings, bee (See: Bee stings)
• Stings, jellyfish (See: Jellyfish stings)
• Stings, scorpion (See: Scorpion stings)
• Stomach cancer
• Stomach flu (See: Viral gastroenteritis)
• Stomach pain, nonulcer (See: Nonulcer stomach pain)
• Stomach polyps
• Stomach ulcer (See: Peptic ulcer)
• Stomatodynia (See: Burning mouth syndrome)
• Stones, kidney (See: Kidney stones)
• Stool holding (See: Encopresis)
• Strains and sprains (See: Sprains and strains)
• Strep throat
• Stress cardiomyopathy (See: Broken heart syndrome)
• Stress fractures
• Stress incontinence
• Stretch marks
• Stroke
• Stump pain (See: Phantom pain)
• Stuttering
• Sty
• Subconjunctival hemorrhage
• Subdural hematoma (See: Intracranial hematoma)
• Subfertility (See: Infertility)
• Sudden cardiac arrest
• Sudden infant death syndrome (SIDS)
• Suicide (See: Suicide and suicidal thoughts)
• Suicide and suicidal thoughts
• Sulfa allergy
• Sun allergy
• Sun poisoning (See: Polymorphous light eruption)
• Sunburn
• Sunken chest (See: Pectus excavatum)
• Swallowing difficulties (See: Difficulty swallowing)
• Sweating and body odor
• Sweating, excessive (See: Hyperhidrosis (excessive sweating))
• Sweet syndrome (See: Sweet's syndrome)
• Sweet's syndrome
• Swimmer's ear
• Swimmer's itch
• Swimmers' itch (See: Swimmer's itch)
• Swine flu (See: Swine flu (H1N1 flu))
• Swine flu (H1N1 flu)
• Swollen lymph nodes
• Syncope, vasovagal (See: Vasovagal syncope)
• Syndrome X (See: Metabolic syndrome)
• Synostosis (See: Craniosynostosis)
• Syphilis
• Syringomyelia
• Systemic sclerosis (See: Scleroderma)