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S

  1. Sacral dimple
  2. Sacroiliitis
  3. SAD (See: Seasonal affective disorder (SAD))
  4. Salivary gland tumors
  5. Salmonella infection
  6. Salmonellosis (See: Salmonella infection)
  7. Sarcoidosis
  8. Sarcoma
  9. Sarcoma, bone cancer (See: Bone cancer)
  10. Sarcoma, soft tissue (See: Soft tissue sarcoma)
  11. Scabies
  12. SCAD (See: Spontaneous coronary artery dissection (SCAD))
  13. Scalded mouth syndrome (See: Burning mouth syndrome)
  14. Scarlatina (See: Scarlet fever)
  15. Scarlet fever
  16. Schizoaffective disorder
  17. Schizoid personality disorder
  18. Schizophrenia
  19. Schizophrenia, adolescent (See: Childhood schizophrenia)
  20. Schizophrenia, childhood (See: Childhood schizophrenia)
  21. Schizophrenia, juvenile (See: Childhood schizophrenia)
  22. Schizotypal personality disorder
  23. Schwannoma
  24. Sciatica
  25. Scleroderma
  26. Scleroderma, limited (See: Limited scleroderma)
  27. Sclerosing cholangitis (See: Primary sclerosing cholangitis)
  28. Sclerosing mesenteritis
  29. Sclerosis, amyotrophic lateral (See: Amyotrophic lateral sclerosis (ALS))
  30. Sclerosis, multiple (See: Multiple sclerosis)
  31. Sclerosis, systemic (See: Scleroderma)
  32. Scoliosis
  33. Scorpion sting
  34. Scrotal masses
  35. Seasonal affective disorder (SAD)
  36. Seasonal allergy (See: Hay fever)
  37. Sebaceous carcinoma
  38. Sebaceous cysts (See: Epidermoid cysts)
  39. Seborrheic dermatitis
  40. Seborrheic keratosis
  41. Secondary brain cancer (See: Brain metastases)
  42. Secondary hypertension
  43. Seizure disorder (See: Epilepsy)
  44. Seizure, absence (See: Absence seizure)
  45. Seizure, febrile (See: Febrile seizure)
  46. Seizure, grand mal (See: Grand mal seizure)
  47. Seizure, petit mal (See: Absence seizure)
  48. Seizure, temporal lobe (See: Temporal lobe seizure)
  49. Seizures
  50. Selective IgA deficiency
  51. Self harming (See: Self-injury/cutting)
  52. Self-injury/cutting
  53. Separated shoulder
  54. Separation anxiety disorder
  55. Sepsis
  56. Septal defect, atrial (See: Atrial septal defect)
  57. Septal defect, atrioventricular (See: Atrioventricular canal defect)
  58. Septal defect, ventricular (See: Ventricular septal defect)
  59. Septic arthritis
  60. Serotonin syndrome
  61. Severe acute respiratory syndrome (See: Severe acute respiratory syndrome (SARS))
  62. Severe acute respiratory syndrome (SARS)
  63. Severe brain injury, coma (See: Coma)
  64. Sex headaches
  65. Sexual dysfunction, female (See: Female sexual dysfunction)
  66. Sexual obsession (See: Compulsive sexual behavior)
  67. Sexually transmitted diseases (STDs)
  68. Shaken baby syndrome
  69. Sheehan's syndrome
  70. Shellfish allergy
  71. Shigella infection
  72. Shin splints
  73. Shingles
  74. Short bowel syndrome
  75. Shoulder dislocation (See: Dislocated shoulder)
  76. Shoulder separation (See: Separated shoulder)
  77. Shy-Drager syndrome (See: Multiple system atrophy (MSA))
  78. Sick sinus syndrome
  79. Sickle cell anemia
  80. SIDS (See: Sudden infant death syndrome (SIDS))
  81. Sin Nombre virus infection (See: Hantavirus pulmonary syndrome)
  82. Sinus headache (See: Sinus headaches)
  83. Sinus headaches
  84. Sinusitis, acute (See: Acute sinusitis)
  85. Sinusitis, chronic (See: Chronic sinusitis)
  86. Sjogren's syndrome
  87. Skin cancer
  88. Skin cancer, melanoma (See: Melanoma)
  89. Skin, dry (See: Dry skin)
  90. Skin, itchy (See: Itchy skin (pruritus))
  91. Skipped heartbeats (See: Heart palpitations)
  92. Slapped cheek disease (See: Parvovirus infection)
  93. Sleep apnea
  94. Sleep apnea, central
  95. Sleep apnea, obstructive
  96. Sleep disorders
  97. Sleep terrors (See: Sleep terrors (night terrors))
  98. Sleep terrors (night terrors)
  99. Sleepiness, daytime (See: Narcolepsy)
  100. Sleeplessness (See: Insomnia)
  101. Sleep-related eating disorder
  102. Sleepwalking
  103. Slipped disk (See: Herniated disk)
  104. Slow heartbeat (See: Bradycardia)
  105. Small bowel cancer
  106. Small bowel prolapse (See: Small bowel prolapse (enterocele))
  107. Small bowel prolapse (enterocele)
  108. Small intestine prolapse (See: Small bowel prolapse (enterocele))
  109. Small vessel disease
  110. Smallpox
  111. Smoking (See: Nicotine dependence)
  112. Snoring
  113. Social anxiety disorder
  114. Social anxiety disorder (social phobia) (See: Social anxiety disorder)
  115. Soft palate cancer
  116. Soft tissue sarcoma
  117. Solar keratosis (See: Actinic keratosis)
  118. Solar lentigines (See: Age spots (liver spots))
  119. Solitary fibrous tumor
  120. Solitary rectal ulcer syndrome
  121. Somatic symptom disorder
  122. Somnambulism (See: Sleepwalking)
  123. Sore throat
  124. Soy allergy
  125. Spasmodic torticollis (See: Cervical dystonia)
  126. Specific phobias
  127. Specific reading disability (See: Dyslexia)
  128. Spermatocele
  129. Spider bites
  130. Spina bifida
  131. Spinal arteriovenous malformation (AVM)
  132. Spinal cord injury
  133. Spinal cord tumor
  134. Spinal curvature (See: Scoliosis)
  135. Spinal headaches
  136. Spinal stenosis
  137. Splenomegaly (See: Enlarged spleen (splenomegaly))
  138. Spondylitis (See: Ankylosing spondylitis)
  139. Spondylosis, cervical (See: Cervical spondylosis)
  140. Spontaneous coronary artery dissection (SCAD)
  141. Sprained ankle
  142. Sprains
  143. Sprue, celiac (See: Celiac disease)
  144. Squamous cell carcinoma of the skin
  145. Stable angina (See: Angina)
  146. Stage 4 prostate cancer
  147. Stagnant syndrome (See: Blind loop syndrome)
  148. Stammering (See: Stuttering)
  149. Staph infections
  150. Statis syndrome (See: Blind loop syndrome)
  151. STDs (See: Sexually transmitted diseases (STDs))
  152. Steele-Richardson-Olszewski syndrome (See: Progressive supranuclear palsy)
  153. Stein-Leventhal syndrome (See: Polycystic ovary syndrome (PCOS))
  154. Stenosing tenosynovitis (See: Trigger finger)
  155. Stenosis, aortic valve (See: Aortic valve stenosis)
  156. Stenosis, mitral valve (See: Mitral valve stenosis)
  157. Stenosis, pulmonary valve (See: Pulmonary valve stenosis)
  158. Stenosis, pyloric (See: Pyloric stenosis)
  159. Stenosis, spinal (See: Spinal stenosis)
  160. Stevens-Johnson syndrome
  161. Stickler syndrome
  162. Stings, bee (See: Bee sting)
  163. Stings, jellyfish (See: Jellyfish stings)
  164. Stings, scorpion (See: Scorpion sting)
  165. Stomach cancer
  166. Stomach flu (See: Viral gastroenteritis)
  167. Stomach pain, nonulcer (See: Nonulcer stomach pain)
  168. Stomach polyps
  169. Stomatodynia (See: Burning mouth syndrome)
  170. Stones, kidney (See: Kidney stones)
  171. Stool holding (See: Encopresis)
  172. Strawberry hemangioma (See: Hemangioma)
  173. Strep throat
  174. Stress cardiomyopathy (See: Broken heart syndrome)
  175. Stress fractures
  176. Stress incontinence
  177. Stretch marks
  178. Stroke
  179. Stump pain (See: Phantom pain)
  180. Stuttering
  181. Sty
  182. Subarachnoid hemorrhage
  183. Subconjunctival hemorrhage (broken blood vessel in eye)
  184. Subdural hematoma (See: Intracranial hematoma)
  185. Subfertility (See: Infertility)
  186. Sudden cardiac arrest
  187. Sudden infant death syndrome (SIDS)
  188. Suicide (See: Suicide and suicidal thoughts)
  189. Suicide and suicidal thoughts
  190. Sun allergy
  191. Sun poisoning (See: Polymorphous light eruption)
  192. Sunburn
  193. Sunken chest (See: Pectus excavatum)
  194. Supraventricular tachycardia
  195. Suspicious breast lumps
  196. SVT (See: Supraventricular tachycardia)
  197. Sweating and body odor
  198. Sweating, abnormally excessive (See: Hyperhidrosis)
  199. Sweet's syndrome
  200. Swimmer's ear
  201. Swimmer's itch
  202. Swine flu (H1N1 flu)
  203. Swollen knee
  204. Swollen lymph nodes
  205. Syncope, vasovagal (See: Vasovagal syncope)
  206. Syndrome X (See: Metabolic syndrome)
  207. Synostosis (See: Craniosynostosis)
  208. Synovial sarcoma
  209. Syphilis
  210. Syringomyelia
  211. Systemic capillary leak syndrome
  212. Systemic lupus erythematosus (See: Lupus)
  213. Systemic mastocytosis
  214. Systemic sclerosis (See: Scleroderma)
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