M

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