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M

  1. Macular degeneration, dry
  2. Macular degeneration, wet
  3. Mad cow disease (See: Creutzfeldt-Jakob disease)
  4. Major depression (See: Depression)
  5. Malaria
  6. Male breast cancer
  7. Male hypogonadism
  8. Male infertility
  9. Malignant hyperthermia
  10. Malignant peripheral nerve sheath tumors
  11. Mallet toe and hammertoe (See: Hammertoe and mallet toe)
  12. Mammary duct ectasia
  13. Manic-depressive illness (See: Bipolar disorder)
  14. Marburg virus (See: Ebola virus and Marburg virus)
  15. Marfan syndrome
  16. Mastalgia (See: Breast pain)
  17. Mastitis
  18. MCAD deficiency
  19. MD (See: Muscular dystrophy)
  20. Measles
  21. Measles, German (See: Rubella)
  22. Medial epicondylitis (See: Golfer's elbow)
  23. Medial tibial stress syndrome (See: Shin splints)
  24. Mediterranean anemia (See: Thalassemia)
  25. Megacolon (See: Hirschsprung's disease)
  26. Megaloblastic anemia (See: Vitamin deficiency anemia)
  27. Melanoma
  28. Melanoma of the eye (See: Eye melanoma)
  29. Membranous nephropathy
  30. Meniere's disease
  31. Meningioma
  32. Meningitis
  33. Meniscus tear (See: Torn meniscus)
  34. Menopause
  35. Menorrhagia
  36. Menstrual bleeding, excessive (See: Menorrhagia)
  37. Menstrual cramps
  38. Mental illness
  39. Meralgia paresthetica
  40. Merkel cell carcinoma
  41. Mesenteric artery ischemia (See: Intestinal ischemia)
  42. Mesenteric ischemia
  43. Mesenteric lymphadenitis
  44. Mesothelioma
  45. Metabolic syndrome
  46. Metachromatic leukodystrophy
  47. Metatarsalgia
  48. Methicillin-resistant staphylococcus aureus infection (See: MRSA infection)
  49. MGUS (See: Monoclonal gammopathy of undetermined significance (MGUS))
  50. Microcephaly
  51. Microscopic colitis
  52. Microscopic hematuria (See: Blood in urine (hematuria))
  53. Middle ear infection (See: Ear infection (middle ear))
  54. Migraine
  55. Migraine with aura
  56. Mild cognitive impairment (MCI)
  57. Milia
  58. Miliaria (See: Heat rash)
  59. Milk allergy
  60. Milk intolerance (See: Lactose intolerance)
  61. Miscarriage
  62. Mitral valve disease
  63. Mitral valve prolapse
  64. Mitral valve regurgitation
  65. Mitral valve stenosis
  66. Mittelschmerz
  67. Mixed connective tissue disease
  68. Molar pregnancy
  69. Mold allergy
  70. Moles
  71. Molluscum contagiosum
  72. Mono (See: Mononucleosis)
  73. Monoclonal gammopathy of undetermined significance (MGUS)
  74. Mononucleosis
  75. Mood disorders
  76. Morning sickness
  77. Morphea
  78. Morton's neuroma
  79. Mosquito bites
  80. Mouth cancer
  81. Movement disorders
  82. Moyamoya disease
  83. MRSA infection
  84. MS (See: Multiple sclerosis)
  85. MSA (See: Multiple system atrophy (MSA))
  86. Mucocutaneous lymph node syndrome (See: Kawasaki disease)
  87. Mucopolysaccharidosis type II (See: Hunter syndrome)
  88. Multiple endocrine neoplasia type 1 (See: Multiple endocrine neoplasia, type 1 (MEN 1))
  89. Multiple endocrine neoplasia, type 1 (MEN 1)
  90. Multiple myeloma
  91. Multiple personality disorder (See: Dissociative disorders)
  92. Multiple sclerosis
  93. Multiple system atrophy (MSA)
  94. Mumps
  95. Muscle cramp
  96. Muscle strain (See: Sprains and strains)
  97. Muscular dystrophy
  98. Myasthenia gravis
  99. Myelodysplastic syndromes
  100. Myelofibrosis
  101. Myelomeningocele (See: Spina bifida)
  102. Myocardial infarction (See: Heart attack)
  103. Myocardial ischemia
  104. Myocarditis
  105. Myoclonus
  106. Myofascial pain syndrome
  107. Myomas (See: Uterine fibroids)
  108. Myopia (See: Nearsightedness)
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