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  1. Machado-Joseph Disease
  2. Macroglossia
  3. Macrovascular Diabetes Complications
  4. Macular Degeneration
  5. Macular Degeneration, Age-Related
  6. Macular Degeneration, Age-Related, Laser Photocoagulation for
  7. Macular Degeneration, Age-Related, Photocoagulation (Laser) for
  8. Macular Degeneration, Age-Related, Photodynamic Therapy for
  9. Mad Cow Disease
  10. Madelung's Disease
  11. Maffucci Syndrome
  12. Maggie Morris: Plan Ahead When You Eat Out
  13. Maggie's Story: Making Changes for Her Health
  14. Maggie's Strategies for Eating Healthy
  15. Maggie: Making Room for Worth-It Foods
  16. Magnetic Field Therapy
  17. Magnetic Resonance Cholangiogram
  18. Major Nutrients in Food
  19. Making a Change That Matters
  20. Making a Plan to Help Someone Get Treatment for an Alcohol Use Problem
  21. Making Decisions About Very Premature Infants: Personal Stories
  22. Making the Most of Your Appointment
  23. Making Wise Health Decisions
  24. Making Your Change Happen
  25. Mal de Debarquement
  26. Malabsorption Syndrome
  27. Malabsorption Syndrome
  28. Malaria
  29. Malaria
  30. Malaria Vaccines in Development
  31. Malaria: Life-Threatening Complications
  32. Malaria: Resistance to Medicine
  33. Male Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  34. Male Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  35. Male Breast Development
  36. Male Condoms
  37. Male Genital Problems and Injuries
  38. Male Risk for Osteoporosis
  39. Malignant High Blood Pressure
  40. Malignant Hyperthermia
  41. Malignant Mesothelioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  42. Malignant Mesothelioma Treatment (PDQ®): Treatment - Patient Information [NCI]
  43. Mallet Toe, Phalangeal Head Resection for
  44. Mallet Toe: Should I have surgery?
  45. Mallet Toes
  46. Mallory Weiss Syndrome
  47. Malocclusion and Orthodontics
  48. Manage Stress for Your Heart
  49. Managing Job Stress
  50. Managing Your Medical Bills
  51. Managing Your Toddler's Frustrating Behaviors
  52. Mandibuloacral Dysplasia
  53. Manic Depression in Children and Teens
  54. Manic episode prevention for your child with bipolar disorder
  55. Manic episode prevention with bipolar disorder
  56. Manic-Depressive Disorder
  57. Mantle Cell Lymphoma
  58. Manual Therapy and Bodywork
  59. Manual Therapy for Neck Pain
  60. Maple Syrup Urine Disease
  61. Marcus Gunn Phenomenon
  62. Marden Walker Syndrome
  63. Marfan Syndrome
  64. Marijuana
  65. Marine Stings and Scrapes
  66. Marine Toxins
  67. Marinesco-Sjögren Syndrome
  68. Maroteaux Lamy Syndrome
  69. Marshall Smith Syndrome
  70. Marshall Syndrome
  71. Martha's Story: A Voice for Recovery
  72. Marvin's Story: Coping After the Hurricane
  73. Mask spacer and metered-dose inhaler, Helping a child with asthma use a
  74. Massage Therapy
  75. Massage Therapy During Pregnancy
  76. Mastalgia (Breast Pain)
  77. Mastectomy (Removal of the Breast) for Breast Cancer
  78. Mastectomy for Breast Cancer
  79. Mastectomy or Breast-Conserving Surgery to Treat Early -Stage Breast Cancer, Deciding About
  80. Mastectomy, Deciding About Breast Reconstruction
  81. Mastitis While Breastfeeding
  82. Mastocytosis
  83. Maternal Serum Triple or Quadruple Test, Deciding About
  84. Maternally Inherited Leigh Syndrome and NARP Syndrome
  85. Maxillofacial Dysostosis
  86. May Hegglin Anomaly
  87. Mayer-Rokitansky-Küster-Hauser Syndrome
  88. Maze Procedure for Atrial Fibrillation


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  1. Measles
  2. Measles (Rubeola)
  3. Measuring Your Waist
  4. Mechanical Ventilation at End of Life, Deciding About
  5. Meckel Syndrome
  6. MECP2 Duplication Syndrome
  7. Medial Collateral Ligament (MCL) Injury
  8. Medical Abortion Care
  9. Medical Causes of Bed-Wetting
  10. Medical Checkups for Adolescents
  11. Medical Conditions That Increase the Risk of Osteoporosis
  12. Medical Conditions That May Cause Back Pain
  13. Medical Decision Making
  14. Medical Errors Prevention
  15. Medical History and Physical Exam for Dementia or Alzheimer's Disease
  16. Medical History and Physical Exam for Nearsightedness
  17. Medical History for Alcohol Problems
  18. Medical History for Eating Disorders
  19. Medical History for Hepatitis C
  20. Medical History for Osteoporosis
  21. Medical History for Paget's Disease
  22. Medical History for Pneumonia
  23. Medical Marijuana
  24. Medical Partnership
  25. Medical Power of Attorney
  26. Medical Records at Home
  27. Medical Specialists
  28. Medical Test Preparation for Children and Teens
  29. Medicare Hospice Benefit
  30. Medicare: What You Need to Know
  31. Medication Allergies
  32. Medication and Grapefruit Juice
  33. Medication Cost Reduction
  34. Medication Side Effects and Interactions, Dealing With
  35. Medications, Pregnancy During
  36. Medications, Prescription
  37. Medications, Taking Wisely: Quick Tips
  38. Medicine for Tourette's Disorder
  39. Medicine side effects for depression, Dealing with
  40. Medicine Use While Breastfeeding
  41. Medicines and Other Substances That Can Cause Symptoms of Depression
  42. Medicines During Pregnancy
  43. Medicines for ADHD (attention deficit hyperactivity disorder)
  44. Medicines for bone loss
  45. Medicines for Cluster Headaches
  46. Medicines for Erection Problems: Reactions With Nitrate
  47. Medicines That Can Cause Acute Kidney Injury
  48. Medicines That Can Cause Constipation
  49. Medicines That Can Cause Pancreatitis
  50. Medicines That Cause Hearing Loss
  51. Medicines That Interact With Alcohol
  52. Medicines to Prevent Abnormal Heart Rhythm in Heart Failure
  53. Medicines, Osteoporosis, and Fractures
  54. Meditation
  55. Meditation for Stress Management
  56. Mediterranean Diet
  57. Medium Chain Acyl CoA Dehydrogenase Deficiency
  58. Medullary Sponge Kidney
  59. Medulloblastoma
  60. Megalencephaly-Capillary Malformation
  61. Megalocornea Mental Retardation Syndrome
  62. Meige Syndrome
  63. Melanoma
  64. Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  65. Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  66. Melanoma, Excision of
  67. Melanoma, Lymphadenectomy (Lymph Node Removal) for
  68. Melanoma, Malignant
  69. Melanoma, Radiation Therapy for
  70. Melanoma, Surgical Excision of
  71. MELAS Syndrome
  72. Melatonin
  73. Meleda Disease
  74. Melkersson Rosenthal Syndrome
  75. Melnick Needles Syndrome
  76. Melorheostosis
  77. Memory Loss
  78. Memory Problems: Issues With Driving
  79. Memory Problems: Tips for Helping the Person With Daily Tasks
  80. Memory Problems: Wandering
  81. Men's Health
  82. Menarche
  83. Menetrier Disease
  84. Ménière's Disease
  85. Ménière's Disease
  86. Ménière's Disease and Sodium
  87. Meningitis
  88. Meningitis
  89. Meningitis and Group B Streptococci
  90. Meningitis and Listeria Monocytogenes
  91. Meningitis, Bacterial
  92. Meningitis, Tuberculous
  93. Meningitis: Long-Term Problems
  94. Meningitis: Medicines for Pressure on the Brain
  95. Meningitis: Medicines for Seizures
  96. Meningitis: Short-Term Problems
  97. Meningococcal Meningitis
  98. Meningococcemia
  99. Meniscectomy for a Meniscus Tear
  100. Meniscus Repair
  101. Meniscus Surgery: Recovery Time
  102. Meniscus Tear
  103. Meniscus Tear, Meniscectomy for
  104. Meniscus Tear: Rehabilitation Exercises
  105. Meniscus Tear: Should I Have a Diagnostic Test (MRI or Arthroscopy)?
  106. Meniscus Tear: Should I Have Surgery?
  107. Menkes Disease
  108. Menopause and Perimenopause
  109. Menopause: Managing Hot Flashes
  110. Menopause: Should I Use Hormone Therapy (HT)?
  111. Menopause: Wild Yam and Progesterone Creams
  112. Menstrual Cramps
  113. Menstrual Cycle
  114. Menstrual Cycle: Dealing With Cramps
  115. Menstrual Pain Relief
  116. Menstrual Periods, Missed or Irregular
  117. Menstruation: Not Having a Period by Age 15
  118. Mental and Behavioral Health
  119. Mental Decline
  120. Mental Health Problems and Stigma
  121. Mercury in Fish
  122. Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  123. Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI]
  124. MERRF Syndrome
  125. Mesenchymal Chondrosarcoma
  126. Mesothelioma
  127. Metabolic Panel, Basic
  128. Metabolic Panel, Comprehensive
  129. Metabolic Surgery (Biliopancreatic Diversion)
  130. Metabolic Syndrome
  131. Metachromatic Leukodystrophy
  132. Metaphyseal Chondrodysplasia, Schmid Type
  133. Metastatic Breast Cancer
  134. Metastatic Melanoma
  135. Metastatic Prostate Cancer
  136. Metastatic Squamous Neck Cancer With Occult Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  137. Metastatic Squamous Neck Cancer with Occult Primary Treatment (PDQ®): Treatment - Patient Information [NCI]
  138. Metatropic Dysplasia I
  139. Metered-dose inhaler and mask spacer, Helping a child with asthma use a
  140. Metered-Dose Inhaler for Breathing Problems
  141. Metformin for diabetes
  142. Methamphetamine
  143. Methicillin-Resistant Staphylococcus Aureus (MRSA)


Top of Page
  1. Microdiscectomy for a Herniated Disc
  2. Microvillus Inclusion Disease
  3. Middle Ear Infection
  4. Middle East Respiratory Syndrome (MERS)
  5. Migrain Headache Prevention, Should I take Medication?
  6. Migraine Headache Triggers
  7. Migraine Headaches
  8. Migraines: Finding and Avoiding Triggers
  9. Mikulicz Syndrome
  10. Mild Cognitive Impairment and Dementia
  11. Mild, Moderate, and Severe Vertigo
  12. Mild, Moderate, or Severe Diarrhea
  13. Milestones for 10-Year-Olds
  14. Milestones for 2-Year-Olds
  15. Milestones for 3-Year-Olds
  16. Milestones for 4-Year-Olds
  17. Milestones for 5-Year-Olds
  18. Milestones for 6-Year-Olds
  19. Milestones for 7-Year-Olds
  20. Milestones for 8-Year-Olds
  21. Milestones for 9-Year-Olds
  22. Milestones for a 1-Year-Old
  23. Milestones for Ages 11 to 14
  24. Milestones for Ages 15 to 18
  25. Milestones for an 18-Month-Old Child
  26. Military Sexual Trauma
  27. Milk Allergy
  28. Milk Intolerance
  29. Milk Oversupply
  30. Milk Sugar Tolerance
  31. Milk Thistle
  32. Milk Thistle (PDQ®): Complementary and alternative medicine - Patient Information [NCI]
  33. Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  34. Miller Syndrome
  35. Mind-Body Wellness
  36. Mindfulness-Based Stress Reduction
  37. Minerals: Their Functions and Sources
  38. Miscarriage
  39. Miscarriage: Expectant Management for Incomplete Miscarriage
  40. Miscarriage: Should I Have Treatment to Complete a Miscarriage?
  41. Miscarriage: Vacuum Aspiration
  42. Misdiagnosis of Lyme Disease
  43. Missed or Irregular Periods
  44. Missed Periods and Endurance Training
  45. Mistletoe Extracts (PDQ®): Complementary and alternative medicine - Patient Information [NCI]
  46. Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
  47. Mitochondrial Neurogastrointestinal Encephalopathy
  48. Mitral Valve Disease: Heart Rhythm Problems
  49. Mitral Valve Prolapse
  50. Mitral Valve Prolapse Syndrome
  51. Mitral Valve Prolapse, Valve Repair or Replacement for
  52. Mitral Valve Regurgitation
  53. Mitral Valve Regurgitation and Exercise
  54. Mitral Valve Regurgitation, Valve Repair or Replacement for
  55. Mitral Valve Regurgitation: Repair or Replace the Valve?
  56. Mitral Valve Regurgitation: Severity
  57. Mitral Valve Repair Surgery (Commissurotomy) for Mitral Valve Stenosis
  58. Mitral Valve Replacement Surgery
  59. Mitral Valve Stenosis
  60. Mitral Valve Stenosis: Repair or Replacement?
  61. Mixed Connective Tissue Disease (MCTD)
  62. Mixed Cryoglobulinemia


Top of Page
  1. Mucha Habermann disease
  2. Muckle-Wells Syndrome
  3. Mucolipidosis IV
  4. Mucopolysaccharidoses
  5. Mucopolysaccharidosis Type I
  6. Mucopolysaccharidosis Type III
  7. Mucous Cyst Ganglions
  8. Mucous Membrane Pemphigoid
  9. Mulibrey Nanism
  10. Multidrug-Resistant Tuberculosis (TB)
  11. Multifetal Pregnancy Reduction
  12. Multifetal pregnancy reduction, Should I consider a
  13. Multiple Endocrine Neoplasia Type 1
  14. Multiple Endocrine Neoplasia Type 2
  15. Multiple Myeloma
  16. Multiple Pregnancy: Genetic Disorders and Birth Defects
  17. Multiple Pregnancy: Should I Consider a Multifetal Pregnancy Reduction?
  18. Multiple Pregnancy: Twins or More
  19. Multiple Sclerosis
  20. Multiple Sclerosis (MS)
  21. Multiple Sclerosis and Geographic Location
  22. Multiple Sclerosis and Pregnancy
  23. Multiple Sclerosis Progression
  24. Multiple Sclerosis: Alternative Treatments
  25. Multiple Sclerosis: Bladder Problems
  26. Multiple Sclerosis: Intravenous Immunoglobulin (IVIG)
  27. Multiple Sclerosis: Medicines for Depression
  28. Multiple Sclerosis: Medicines for Fatigue
  29. Multiple Sclerosis: Medicines for Muscle Stiffness and Tremors
  30. Multiple Sclerosis: Mental and Emotional Problems
  31. Multiple Sclerosis: Mercury Dental Fillings
  32. Multiple Sclerosis: Modifying Your Home
  33. Multiple Sclerosis: MRI Results
  34. Multiple Sclerosis: Other Treatments Under Study
  35. Multiple Sclerosis: Pain Medicines
  36. Multiple Sclerosis: Questions About What to Expect
  37. Multiple Sclerosis: Should I Start Taking Medicines for MS?
  38. Multiple Sclerosis: Treating Sexual Problems With Medicines
  39. Multiple Sclerosis: Urinary Tract Tests
  40. Multiple Sulfatase Deficiency
  41. Multiple System Atrophy
  42. Mulvihill Smith Syndrome
  43. Mumps
  44. Mumps
  45. Munchausen Syndrome by Proxy
  46. Muscle Cramps
  47. Muscle Relaxants for Anesthesia
  48. Muscular Dystrophy, Becker
  49. Music Therapy
  50. Mutism, Selective