M

  1. Macular degeneration, dry, also known asDry macular degeneration)
  2. Macular degeneration, wet, also known asWet macular degeneration)
  3. Mad cow disease, also known asCreutzfeldt-Jakob disease)
  4. Major depressive disorder, also known asDepression (major depressive disorder))
  5. Malaria
  6. Male breast cancer
  7. Male hypogonadism
  8. Male infertility
  9. Malignant fibrous histiocytoma, also known asUndifferentiated pleomorphic sarcoma)
  10. Malignant hyperthermia
  11. Malignant mesothelioma, also known asMesothelioma)
  12. Malignant peripheral nerve sheath tumors
  13. Mallet toe and hammertoe, also known asHammertoe and mallet toe)
  14. MALS, also known asMedian arcuate ligament syndrome (MALS))
  15. Mammary duct ectasia
  16. Manic-depressive illness, also known asBipolar disorder)
  17. Marfan syndrome
  18. MASLD, also known asNonalcoholic fatty liver disease)
  19. Mastalgia, also known asBreast pain)
  20. Mastitis
  21. MCAD deficiency
  22. MD, also known asMuscular dystrophy)
  23. MDS, also known asMyelodysplastic syndromes)
  24. ME/CFS, also known asMyalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS))
  25. Measles
  26. Measles, German, also known asRubella)
  27. Medial epicondylitis, also known asGolfer's elbow)
  28. Medial tibial stress syndrome, also known asShin splints)
  29. Median arcuate ligament syndrome (MALS)
  30. Medication overuse headaches
  31. Mediterranean anemia, also known asThalassemia)
  32. Medulloblastoma
  33. Megacolon, also known asHirschsprung's disease)
  34. Megaloblastic anemia, also known asVitamin deficiency anemia)
  35. Melanoma
  36. Melanoma of the eye, also known asEye melanoma)
  37. MEN 2, also known asMultiple endocrine neoplasia, type 2 (MEN 2))
  38. Meniere's disease
  39. Meningioma
  40. Meningitis
  41. Meniscus tear, also known asTorn meniscus)
  42. Menopause
  43. Menorrhagia, also known asHeavy menstrual bleeding)
  44. Menstrual cramps
  45. Mental illness
  46. Meralgia paresthetica
  47. Merkel cell carcinoma
  48. Mesenteric ischemia
  49. Mesenteric lymphadenitis
  50. Mesothelioma
  51. Metabolic dysfunction-associated steatotic liver disease, also known asNonalcoholic fatty liver disease)
  52. Metabolic syndrome
  53. Metachromatic leukodystrophy
  54. Metastatic prostate cancer, also known asStage 4 prostate cancer)
  55. Metatarsalgia
  56. Methicillin-resistant staphylococcus aureus infection, also known asMRSA infection)
  57. MG, also known asMyasthenia gravis)
  58. MGUS, also known asMonoclonal gammopathy of undetermined significance (MGUS))
  59. Microcephaly
  60. Microscopic colitis
  61. Microscopic hematuria, also known asBlood in urine (hematuria))
  62. Migraine
  63. Migraine with aura
  64. Mild cognitive impairment (MCI)
  65. Miliaria, also known asHeat rash)
  66. Milk allergy
  67. Milk intolerance, also known asLactose intolerance)
  68. Miscarriage
  69. Mitral valve disease
  70. Mitral valve prolapse
  71. Mitral valve regurgitation
  72. Mitral valve stenosis
  73. Mittelschmerz
  74. Mixed connective tissue disease
  75. MOG antibody-associated disorder, also known asMyelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD))
  76. MOGAD, also known asMyelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD))
  77. Molar pregnancy
  78. Mold allergy
  79. Moles
  80. Molluscum contagiosum
  81. Mono, also known asMononucleosis)
  82. Monoclonal gammopathy of undetermined significance (MGUS)
  83. Mononucleosis
  84. Mood disorders
  85. Morning sickness
  86. Morphea
  87. Morton's neuroma
  88. Mosquito bites
  89. Mouth cancer
  90. Movement disorders
  91. Moyamoya disease
  92. MRSA infection
  93. MS, also known asMultiple sclerosis)
  94. MSA, also known asMultiple system atrophy)
  95. Mucocutaneous lymph node syndrome, also known asKawasaki disease)
  96. Multiple endocrine neoplasia type 1, also known asMultiple endocrine neoplasia, type 1 (MEN 1))
  97. Multiple endocrine neoplasia, type 1 (MEN 1)
  98. Multiple endocrine neoplasia, type 2 (MEN 2)
  99. Multiple myeloma
  100. Multiple sclerosis
  101. Multiple system atrophy
  102. Multisystem inflammatory syndrome in children (MIS-C)
  103. Mumps
  104. Muscle cramp
  105. Muscle strains
  106. Muscular dystrophy
  107. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)
  108. Myasthenia gravis
  109. Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)
  110. Myelodysplastic neoplasms, also known asMyelodysplastic syndromes)
  111. Myelodysplastic syndromes
  112. Myelofibrosis
  113. Myocardial infarction, also known asHeart attack)
  114. Myocardial ischemia
  115. Myocarditis
  116. Myoclonus
  117. Myofascial pain syndrome
  118. Myopia, also known asNearsightedness)
  119. Myxofibrosarcoma
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