This is the list of the rarest medical conditions known to humankind. What is the most uncommon disease? Have you ever wandered?

  1. Hutchinson-Gilford Progeria Syndrome – click to find out more.
  2. Fibrodysplasia Ossificans Progressiva
  3. Alien Hand Syndrome
  4. Jumping Frenchmen of Maine
  5. Alice in Wonderland Syndrome
  6. Stone Man Syndrome (Fibrodysplasia Ossificans Progressiva)
  7. Cotard Delusion (Walking Corpse Syndrome)
  8. Polydactyly (Extra Fingers or Toes)
  9. Xeroderma Pigmentosum
  10. Morgellons Disease
  11. Capgras Syndrome
  12. Tetra-Amelia Syndrome
  13. Paraneoplastic Pemphigus
  14. Harlequin Ichthyosis
  15. Hyper IgM Syndrome
  16. Geographic Tongue
  17. Foreign Accent Syndrome
  18. Epidermodysplasia Verruciformis (Tree Man Syndrome)
  19. Werewolf Syndrome (Hypertrichosis)
  20. Aquagenic Urticaria (Water Allergy)
  21. Pantothenate Kinase-Associated Neurodegeneration (PKAN)
  22. Kleine-Levin Syndrome (Sleeping Beauty Syndrome)
  23. Elephantiasis
  24. Ondine’s Curse (Congenital Central Hypoventilation Syndrome)
  25. Lesch-Nyhan Syndrome
  26. Trimethylaminuria (Fish Odor Syndrome)
  27. Stiff Person Syndrome
  28. Progeria
  29. Exploding Head Syndrome
  30. Jumping Frenchmen of Maine
  31. Geographic Tongue
  32. Foreign Accent Syndrome
  33. Stone Man Syndrome (Fibrodysplasia Ossificans Progressiva)
  34. Cotard Delusion (Walking Corpse Syndrome)
  35. Polydactyly (Extra Fingers or Toes)
  36. Xeroderma Pigmentosum
  37. Morgellons Disease
  38. Capgras Syndrome
  39. Tetra-Amelia Syndrome
  40. Paraneoplastic Pemphigus
  41. Harlequin Ichthyosis
  42. Hyper IgM Syndrome
  43. Fish Odor Syndrome (Trimethylaminuria)
  44. Hypertrichosis (Werewolf Syndrome)
  45. Jumping Frenchmen of Maine
  46. Exploding Head Syndrome
  47. Alien Hand Syndrome
  48. Progeria
  49. Polydactyly (Extra Fingers or Toes)
  50. Ondine’s Curse (Congenital Central Hypoventilation Syndrome)
  51. Lesch-Nyhan Syndrome
  52. Hutchinson-Gilford Progeria Syndrome
  53. Aquagenic Urticaria (Water Allergy)
  54. Stone Man Syndrome (Fibrodysplasia Ossificans Progressiva)
  55. Cotard Delusion (Walking Corpse Syndrome)
  56. Pantothenate Kinase-Associated Neurodegeneration (PKAN)
  57. Geographic Tongue
  58. Foreign Accent Syndrome
  59. Epidermodysplasia Verruciformis (Tree Man Syndrome)
  60. Kleine-Levin Syndrome (Sleeping Beauty Syndrome)
  61. Elephantiasis
  62. Morgellons Disease
  63. Harlequin Ichthyosis
  64. Hutchinson-Gilford Progeria Syndrome
  65. Trimethylaminuria (Fish Odor Syndrome)
  66. Stiff Person Syndrome
  67. Paraneoplastic Pemphigus
  68. Jumping Frenchmen of Maine
  69. Exploding Head Syndrome
  70. Alien Hand Syndrome
  71. Tetra-Amelia Syndrome
  72. Stone Man Syndrome (Fibrodysplasia Ossificans Progressiva)
  73. Progeria
  74. Hyper IgM Syndrome
  75. Fish Odor Syndrome (Trimethylaminuria)
  76. Hypertrichosis (Werewolf Syndrome)
  77. Geographic Tongue
  78. Xeroderma Pigmentosum
  79. Morgellons Disease
  80. Kleine-Levin Syndrome (Sleeping Beauty Syndrome)
  81. Stiff Person Syndrome
  82. Cotard Delusion (Walking Corpse Syndrome)
  83. Lesch-Nyhan Syndrome
  84. Ondine’s Curse (Congenital Central Hypoventilation Syndrome)
  85. Foreign Accent Syndrome
  86. Epidermodysplasia Verruciformis (Tree Man Syndrome)
  87. Hutchinson-Gilford Progeria Syndrome
  88. Alien Hand Syndrome
  89. Polydactyly (Extra Fingers or Toes)
  90. Capgras Syndrome
  91. Aquagenic Urticaria (Water Allergy)
  92. Jumping Frenchmen of Maine
  93. Exploding Head Syndrome
  94. Pantothenate Kinase-Associated Neurodegeneration (PKAN)
  95. Harlequin Ichthyosis
  96. Elephantiasis
  97. Trimethylaminuria (Fish Odor Syndrome)
  98. Progeria
  99. Stone Man Syndrome (Fibrodysplasia Ossificans Progressiva)
  100. Cotard Delusion (Walking Corpse Syndrome)