Sa
Sacral dimple
Sacroiliitis
SAD
Salivary gland tumors
Salmonella infection
Salmonellosis
Sarcoidosis
Sarcoma
Sarcoma, bone cancer
See
Bone cancer
Sarcoma, soft tissue
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Sc
Scabies
SCAD
Scalded mouth syndrome
Scarlatina
Scarlet fever
Schizoaffective disorder
Schizoid personality disorder
Schizophrenia
Schizophrenia, adolescent
Schizophrenia, childhood
Schizophrenia, juvenile
Schizotypal personality disorder
Schwannoma
Schwannomatosis
SCI
Sciatica
Scleroderma
Sclerosing cholangitis
Sclerosing mesenteritis
Sclerosis, multiple
Sclerosis, systemic
See
Scleroderma
Scoliosis
Scorpion sting
Scrotal masses
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Se
Seasonal affective disorder (SAD)
Seasonal allergy
See
Hay fever
Sebaceous carcinoma
Sebaceous cysts
Seborrheic dermatitis
Seborrheic keratosis
Secondary brain cancer
Secondary hypertension
SEID
Seizure disorder
See
Epilepsy
Seizure, absence
Seizure, febrile
Seizure, grand mal
Seizure, petit mal
Seizure, temporal lobe
Seizures
Selective IgA deficiency
Self harming
Self-injury/cutting
Separation anxiety disorder
Sepsis
Septal defect, atrial
Septal defect, atrioventricular
Septal defect, ventricular
Septic arthritis
Serotonin syndrome
Severe acute respiratory syndrome
Severe acute respiratory syndrome (SARS)
Severe brain injury, coma
See
Coma
Sex headaches
Sexual dysfunction, female
Sexual obsession
Sexually transmitted diseases (STDs)
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Sh
Shaken baby syndrome
Shellfish allergy
Shigella infection
Shin splints
Shingles
Short bowel syndrome
Shoulder dislocation
Shy-Drager syndrome
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Si
SIBO
Sick sinus syndrome
Sickle cell anemia
SIDS
Sin Nombre virus infection
Sinus headaches
Sinusitis, acute
Sinusitis, chronic
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Sk
Skin cancer
Skin cancer, melanoma
See
Melanoma
Skin writing
Skin, itchy
Skipped heartbeats
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Sl
Slapped cheek disease
Sleep apnea
Sleep apnea in children, obstructive
Sleep apnea, central
Sleep apnea, obstructive
Sleep disorders
Sleep terrors
Sleep terrors (night terrors)
Sleepiness, daytime
See
Narcolepsy
Sleeplessness
See
Insomnia
Sleepwalking
Slipped disk
Slow heartbeat
See
Bradycardia
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Sm
Small bowel bacterial overgrowth
Small bowel cancer
Small bowel prolapse
Small bowel prolapse (enterocele)
Small intestinal bacterial overgrowth (SIBO)
Small intestine prolapse
Small vessel disease
Smallpox
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So
Social anxiety disorder (social phobia)
Soft palate cancer
Soft tissue sarcoma
Solar keratosis
Solar lentigines
Solitary fibrous tumor
Solitary rectal ulcer syndrome
Somatic symptom disorder
Somnambulism
See
Sleepwalking
Sore throat
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Sp
Spasmodic torticollis
Specific phobias
Specific reading disability
See
Dyslexia
Spermatocele
Spider bites
Spina bifida
Spinal arteriovenous malformation (AVM)
Spinal cord injury
Spinal cord tumor
Spinal curvature
See
Scoliosis
Spinal headaches
Spinal stenosis
Splenomegaly
Spondylosis, cervical
Spontaneous coronary artery dissection (SCAD)
Sprained ankle
Sprains
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St
Stage 4 prostate cancer
Stammering
See
Stuttering
Staph infections
STDs
Steele-Richardson-Olszewski syndrome
Stein-Leventhal syndrome
Stenosing tenosynovitis
Stenosis, aortic valve
Stenosis, mitral valve
Stenosis, pulmonary valve
Stenosis, pyloric
Stenosis, spinal
Stevens-Johnson syndrome
Stings, bee
See
Bee sting
Stings, jellyfish
Stings, scorpion
Stomach cancer
Stomach flu
Stomach pain, nonulcer
Stomach polyps
Stomatodynia
Stool holding
See
Encopresis
Strawberry hemangioma
See
Hemangioma
Strep throat
Stress cardiomyopathy
Stress fractures
Stress incontinence
Stretch marks
Stroke
Stump pain
Stuttering
Stye (sty)
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Su
Subarachnoid hemorrhage
Subconjunctival hemorrhage (broken blood vessel in eye)
Subfertility
See
Infertility
Substance abuse disorder
Substance use disorder
Sudden cardiac arrest
Sudden infant death syndrome (SIDS)
Suicide
Suicide and suicidal thoughts
Sun allergy
Sun poisoning
Sunburn
Sunken chest
Supranuclear palsy
Supraventricular tachycardia
Suspicious breast lumps
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Sw
Sweating and body odor
Sweating, abnormally excessive
Swelling
See
Edema
Swimmer's ear
Swimmer's itch
Swollen knee
Swollen lymph nodes
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Sy
Syndrome X
Synostosis
Synovial sarcoma
Syphilis
Syringomyelia
Systemic exertional intolerance disease
Systemic lupus erythematosus
See
Lupus
Systemic mastocytosis
Systemic sclerosis
See
Scleroderma
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