Click on a letter to browse health topics alphabetically or use the search form above.
Back to top- MAA
- Machado Disease
- Machado-Joseph Disease
- Macrencephaly
- Macrocephaly, Cutis Marmorata Telangiectatica Congenita Syndrome
- Macrocephaly, multiple lipomas, and hemangiomata
- Macrocephaly, pseudopapilledema, and multiple hemangiomata
- Macroglobulinemia
- Macroglossia
- Macroglossia-Omphalocele-Visceromegaly Syndrome
- Macrothrombocytopenia with Leukocyte Inclusions
- macrothrombocytopenia, familial Bernard-Soulier type
- Macular Degeneration, Age-Related
- Macular Degeneration, Age-Related, Laser Photocoagulation for
- Macular Degeneration, Age-Related, Photocoagulation (Laser) for
- Macular Degeneration, Age-Related, Photodynamic Therapy for
- macular degeneration, polymorphic vitelline
- Macular degeneration: Coping with reduced vision
- Mad Cow Disease
- MADD
- Madelung's Disease
- Maffucci Syndrome
- Maggie's Story: Making Changes for her Health
- Magnetic Field Therapy
- Major Aphthous Ulcer
- Major Canker Sore
- Major Ulcerative Stomatitis
- Making the Most of Your Appointment
- Making Wise Health Decisions
- Mal de Debarquement
- Mal de Meleda
- Mal del Pinto
- Malabsorption Syndrome
- Malabsorption-Ectodermal Dysplasia-Nasal Alar Hypoplasia
- Malaria
- Malayi Tropical Eosinphilia
- Male Breast Development
- Male Genital Problems and Injuries
- Male Turner Syndrome
- Malignant Appendiceal Tumor
- Malignant Atrophic Papulosis
- malignant carcinoid syndrome
- Malignant Hyperphenylalaninemia
- Malignant Hyperthermia
- Malignant Large Bowel Cystadenocarcinoma
- Malignant Large Bowel Peritoneal Carcinomatosis
- Malignant Large Bowel Tumor
- Malignant Lymph Angiitis and Granulomatosis
- Malignant Melanoma, Dysplastic Nevus Type
- Malignant Mesothelioma
- Malignant PKU
- Mallet Toe Surgery, Deciding About
- Mallet Toe, Phalangeal Head Resection for
- Mallet Toes
- Mallory Weiss Syndrome
- Malocclusion and Orthodontics
- Maltese Fever
- Mammary Paget's Disease
- Managing Job Stress
- Mandibular Ameloblastoma
- Mandibulofacial Dysostosis
- Manic Depression in Children and Teens
- Manic episode prevention for your child with bipolar disorder
- Manic episode prevention with bipolar disorder
- Manic-Depressive Disorder
- Mannosidase, Alpha B, Lysosomal
- Mannosidosis
- Mannosidosis, Alpha B, Lysosomal
- Mansonella perstans
- Mantle Cell Lymphoma
- Manual and vacuum aspiration for abortion
- Manual Therapy and Bodywork
- Maple Syrup Urine Disease
- Marble Bones
- Marchiafava-Micheli Syndrome
- Marcus Gunn (Jaw-Winking) Syndrome
- Marcus Gunn Phenomenon
- Marcus Gunn Ptosis (with jaw-winking)
- Marden Walker Syndrome
- Mareo
- Marfan Syndrome
- Marie Disease
- Marie-Sainton Disease
- Marine Stings and Scrapes
- Marinesco Sjogren Syndrome
- Marinesco-Garland Syndrome
- Marinesco-Sjogren Syndrome-Hypergonadotrophic Hypogonadism
- Marinesco-Sjogren Syndrome-Myopathy
- Marinesco-Sjogren Syndrome-Neuropathy
- Marinesco-Sjogren-Garland Syndrome
- Marker X Syndrome
- Maroteaux Lamy Syndrome
- Marshall Smith Syndrome
- Marshall Syndrome
- Martha's Story: A Voice for Recovery
- Martin-Albright Syndrome
- Martin-Bell Syndrome
- Martorell Syndrome
- MAS
- Mask spacer and metered-dose inhaler, Helping a child with asthma use a
- Massage Therapy
- Massive Gorham Osteolysis
- Massive Myoclonia
- Massive Osteolysis
- Mastalgia (Breast Pain)
- Mastectomy for Breast Cancer
- Mastectomy or Breast-Conserving Surgery to Treat Early -Stage Breast Cancer, Deciding About
- Mastectomy, Deciding About Breast Reconstruction
- Mastitis While Breast-Feeding
- Mastocytosis
- Mastocytosis, Infantile
- Maternal Serum Triple or Quadruple Test, Deciding About
- Maxillary Ameloblastoma
- Maxillofacial Dysostosis
- Maxillonasal Dysplasia
- Maxillonasal Dysplasia, Binder Type
- Maxillopalpebral Synkinesis
- May Hegglin Anomaly
- Maze procedure for atrial fibrillation
- MCAD Deficiency
- McArdle Disease
- McCune Albright Syndrome
- MCDS
- McKusick Type Metaphyseal Chondrodysplasia
- MCTD
- MdDS
- ME
- Measles (Rubeola)
- Mechanical devices for urinary incontinence in women
- Mechanical Ventilation at End of Life, Deciding About
- Meckel Syndrome
- Meckel-Gruber Syndrome
- MED
- Medical Decision Making
- Medical Errors Prevention
- Medical Partnership
- Medical Power of Attorney
- Medical Records at Home
- Medical Specialists
- Medical Test Preparation for Children and Teens
- Medication Allergies
- Medication Cost Reduction
- Medication Side Effects and Interactions, Dealing With
- Medications, Prescription
- Medicine side effects for depression, Dealing with
- Medicines During Pregnancy
- Meditation
- Meditation for Stress Management
- Mediterranean Fever, Familial
- Mediterranean Fever, Nonfamilial
- Medium Chain Acyl CoA Dehydrogenase Deficiency
- Medullary Cystic Kidney Disease/Nephronophthisis
- Medullary Sponge Kidney
- Medullary Stenosis, Congenital
- Medulloblastoma
- MEF
- Megaesophagus
- Megalencephaly with Hyaline Inclusion
- Megalencephaly with Hyaline Panneuropathy
- Megalencephaly-Cutis Marmorata Telangiectatica Congenita Syndrome
- Megalocornea Mental Retardation Syndrome
- Meibomian Cyst
- Meier-Gorlin Syndrome
- Meige Syndrome
- Melanodermic Leukodystrophy
- Melanoma
- Melanoma, cutaneous: Treatment - Health Professional Information [NCI PDQ]
- Melanoma, cutaneous: Treatment - Patient Information [NCI PDQ]
- Melanoma, Excision of
- Melanoma, Lymph Node Removal for
- Melanoma, Lymphadenectomy (Lymph Node Removal) for
- Melanoma, Radiation Therapy for
- Melanoma, Surgical Excision of
- MELAS Syndrome
- Melatonin
- Meleda Disease
- Melitensis Septicemia
- Melitococcosis
- Melkersson Rosenthal Syndrome
- Melkersson Syndrome
- Melnick Needles Syndrome
- Melnick-Fraser Syndrome
- Melnick-Needles Osteodysplasty
- Melorheostosis
- Membranoproliferative Glomerulonephritis Type II
- Memory Loss
- Men's Health
- Menarche
- Mendes Da Costa Syndrome
- Menetrier Disease
- Menicus Repair Surgery, Deciding About
- Ménière's Disease
- Ménière's disease: Eating a low-salt diet
- Meningeal Capillary Angiomatosis
- Meningeal Fibroblastoma
- Meningioma
- Meningitis
- Meningitis, Meningococcal
- Meningitis, Tuberculous
- Meningococcal Disease
- Meningococcal Meningitis
- Meningococcemia
- Meningococcemia-Meningitis
- Meniscectomy for a meniscus tear
- Meniscus repair
- Meniscus Tear
- Meniscus Tear, Deciding about Arthroscopy for Diagnosis
- Meniscus Tear, Deciding about MRI
- Meniscus Tear, Meniscectomy for
- Meniscus Tear, Meniscus Repair for
- Meniscus tear: Rehabilitation exercises
- Meniscus tear: Should I have a diagnostic test (MRI or arthroscopy)?
- Meniscus tear: Should I have surgery?
- Menkes Disease
- Menopausal Bleeding, D&C (Dilation and Curettage) for
- Menopausal Bleeding, Dilation and Curettage (D&C) for
- Menopause and Perimenopause
- Menopause: Managing hot flashes
- Menopause: Should I use hormone replacement therapy (HRT)?
- Menstrual Cramps
- Menstrual Cycle
- Menstrual cycle: Dealing with cramps
- Menstrual Pain Relief
- Menstrual Periods, Missed or Irregular
- Mental Decline
- Mental Health Problems and Mind-Body Wellness
- Mental Health Problems and Stigma
- mental retardation
- Mental Retardation with Hypoplastic 5th Fingernails and Toenails
- Mental Retardation with Osteocartilaginous Abnormalities
- Mental Retardation, Aphasia, Shuffling Gait, Adducted Thumbs (MASA)
- Mental Retardation, X-Linked, Associated With Mar Xq28
- Mental Retardation-Deafness-Skeletal Abnormalit.-Coarse Face with Full Lips
- Mental Retradation, X-linked with Growth Delay, Deafness, Microgenitalism
- MEPOP
- Mercury in Fish
- Merkel cell carcinoma: Treatment - Health Professional Information [NCI PDQ]
- Merkel cell carcinoma: Treatment - Patient Information [NCI PDQ]
- Mermaid Syndrome
- MERRF
- MERRF Syndrome
- Merten-Singleton Syndrome
- MES
- Mesangial IGA Nephropathy
- Mesenchymal Chondrosarcoma
- mesenchymal cystic hamartoma
- Mesenteric Panniculitis
- Mesenteritis, Retractile
- Mesiodens-Cataract Syndrome
- mesodermal dysmorphodystrophy, congenital
- Mesoectodermal Dysplasia
- Mesomelic Dwarfism-Madelung Deformity
- Mesothelioma
- Mesothelioma: Treatment - Health Professional Information [NCI PDQ]
- Mesothelioma: Treatment - Patient Information [NCI PDQ]
- Metabolic Panel, Basic
- Metabolic Panel, Comprehensive
- Metabolic Syndrome
- Metachromatic Form of Diffuse Cerebral
- Metachromatic Leukoencephalopathy
- Metaphyseal Chondrodysplasia, Schmid Type
- Metastatic Breast Cancer
- Metastatic cancer, squamous neck with occult primary: Treatment - Health Professional Information [NCI PDQ]
- Metastatic cancer, squamous neck with occult primary: Treatment - Patient Information [NCI PDQ]
- Metastatic Prostate Cancer
- Metatarsus Varus
- Metatropic Dwarfism
- Metatropic Dwarfism Syndrome
- Metatropic dwarfism, type II
- Metatropic Dysplasia
- Metatropic Dysplasia I
- Metatropic dysplasia, type II
- Metered-dose inhaler and mask spacer, Helping a child with asthma use a
- Methicillin-Resistant Staphylococcus aureus (MRSA)
- Methylmalonic Aciduria
- Meulengracht's Disease
- Meyenburg-Altherr-Uehlinger Syndrome
- MFD1
- MFS
- MG
- MHA
- Michail-Matsoukas-Theodorou-Rubinstein-Taybi Syndrome
- Microangiopathic Hemolytic Anemia
- Microcephalic Primordial Dwarfism
- Microcephaly-Hiatal Hernia-Nephrosis, Galloway Type
- Microcephaly-Hiatal Hernia-Nephrotic Syndrome
- Microphthalmia or Anophthalmos with Associated Anomalies (obsolete)
- Micropolygyria With Muscular Dystrophy
- Microscopic Colitis, Collagenous Type
- Microsomal Triglyceride Transfer Protein Deficiency
- Microtia, Absent Patellae, Micrognathia Syndrome
- Microvillus Inclusion Disease
- Middle Ear Infection
- Middle interhemispheric fusion
- Midline granulomatosis
- Migrain Headache Prevention, Should I take Medication?
- Migraine Headaches
- Migraines: Identifying and avoiding triggers
- Mikulicz Syndrome
- Mikulicz-Radecki Syndrome
- Mikulicz-Sjogren Syndrome
- Military Sexual Trauma
- Milk Allergy
- Milk Intolerance
- Milk Thistle
- Milk Thistle: Complementary and alternative medicine - Health Professional Information [NCI PDQ]
- Milk Thistle: Complementary and alternative medicine - Patient Information [NCI PDQ]
- Miller Syndrome
- Mind-Body Wellness
- minimal pigment oculocutaneous albinism
- Mirror-Image Dextrocardia
- Miscarriage
- Miscarriage: Should I have treatment to complete a miscarriage?
- Missed or Irregular Periods
- Mistletoe Extracts: Complementary and alternative medicine - Health Professional Information [NCI PDQ]
- Mistletoe Extracts: Complementary and alternative medicine - Patient Information [NCI PDQ]
- Mitchell Disease
- Mitochondrial Cytopathy, Kearn-Sayre Type
- Mitochondrial Myopathy, Encephalopathy, Lactic Acidosis, Stroke-Like Episod
- Mitochondrial Neurogastrointestinal Encephalopathy
- Mitral Valve Prolapse
- Mitral Valve Prolapse, Valve Repair or Replacement for
- Mitral Valve Regurgitation
- Mitral Valve Regurgitation, Valve Repair or Replacement for
- Mitral Valve Stenosis
- Mixed Connective Tissue Disease (MCTD)
- Mixed Hepatic Porphyria
- MJD
- MKS
- ML Disorder III
- ML Disorder IV
- ML Disorder, Type II
- ML I
- ML II
- ML III
- ML IV
- MLD
- MMP
- MMR Syndrome
- MNGIE
- MNGIE syndrome
- MNS
- Mobius Syndrome
- Moderate Diets for Weight Loss
- Moebius Sequence
- Moebius Syndrome
- Moersch-Woltmann Syndrome
- Mohs micrographic surgery for nonmelanoma skin cancer
- Molar Pregnancy
- Molluscum Contagiosum
- Monilethrix
- Monkey B Virus
- Mono (Infectious Mononucleosis)
- monomodal visual amnesia
- Mononeuritis Multiplex
- Mononeuritis, Peripheral
- Mononeuropathym Peripheral
- Monosaccharide Malabsorption
- Monosomy 11q, Partial
- Monosomy 13q, Partial
- Monosomy 18p Syndrome
- Monosomy 18q Syndrome
- Monosomy 3p
- Monosomy 9p, Partial
- Monosomy X
- Moravcsik-Marinesco-Sjogren Syndrome
- Morbus Gorham-Stout Disease
- Morgagni-Stewart-Morel Syndrome
- Morgagni-Turner-Albright Syndrome
- Morning after pill (contraception)
- Morning Sickness, Managing
- Morquio Disease
- Morquio Syndrome
- Morton's Neuroma
- Morvan Disease
- Mosaic Tetrasomy 9p
- Moschowitz Disease
- Motion Sickness
- Motoneuron Disease
- Motoneurone Disease
- Motor Neuron Disease
- Motor Neuron Syndrome
- Motor Neurone Disease
- Mountain Fever
- Mountain Sickness, Acute
- Mountain Tick Fever
- Mouth (Oral) Cancer
- Mouth and Dental Injuries
- Mouth Problems, Noninjury
- Mouth, Inability To Open Completely, And Short Finger-Flexor Tendons
- Mowat-Wilson Syndrome
- Moya-moya Disease
- Moyamoya Syndrome
- MPGN type II
- MPS
- MPS Disorder
- MPS Disorder I
- MPS Disorder II
- MPS disorder III
- MPS Disorder VI
- MPS Disorder, type VII
- MPS I
- MPS II
- MPS III
- MPS IV
- MPS VI
- MPS VII
- MROS
- MRS
- MS (Multiple Sclerosis)
- MSA
- MSL
- MSS
- MSUD
- MTP Deficiency
- Mucha Habermann Disease
- Mucinous Cyst Adenocarcinoma
- Mucinous Cystadenoma
- Muckle-Wells Syndrome
- Mucolipidosis I
- Mucolipidosis II
- Mucolipidosis III
- Mucolipidosis IV
- mucopolysaccharide storage disease type III
- Mucopolysaccharidoses
- Mucopolysaccharidosis IV
- Mucopolysaccharidosis Type I
- Mucopolysaccharidosis Type II
- Mucopolysaccharidosis Type III
- mucopolysaccharidosis type VII
- Mucopolysaccharidosis VI
- Mucopolysaccharidosis VII
- Mucosis
- Mucosulfatidosis
- Mucous Membrane Pemphigoid
- Mucoviscidosis
- Mud Fever
- Mulibrey Nanism
- Mullerian Aplasia
- Mullerian Duct and Renal Agenesis with Upper Limb and Rib Anomalies
- Mullerian Duct Aplasia
- Mullerian Duct Aplasia-Renal Aplasia-Cervicothoracic Somite Dysplasia
- Mullerian Duct Failure
- Mullerian Duct-Renal-Cervicothoracic-Upper Limb Defects
- Mullerian-Renal-Cervicothoracic Somite Abnormalities
- Multi-infarct Dementia, Binswanger's Type
- Multifetal Pregnancy Reduction, Deciding About
- Multifocal placoid pigment epitheliopathy
- Multiple Acyl-Co-A Dehydrogenation Deficiency
- Multiple Angiomas and Endochondromas
- Multiple carboxylase deficiency, due to biotinidase deficiency
- Multiple Cartilaginous Enchondroses
- Multiple Cartilaginous Exostoses
- Multiple congenital contractures
- Multiple Enchondromatosis
- Multiple Endocrine Adenomatosis
- Multiple Endocrine Deficiency Syndrome, Type II
- Multiple Epiphyseal Dysplasia
- Multiple Exostoses
- Multiple Exostoses Syndrome
- Multiple myeloma (plasma cell neoplasm): Treatment - Health Professional Information [NCI PDQ]
- Multiple myeloma (plasma cell neoplasm): Treatment - Patient Information [NCI PDQ]
- Multiple Osteochondromatosis
- Multiple Peripheral Neuritis
- Multiple Polyposis of the Colon
- Multiple pregnancy: Should I consider a multifetal pregnancy reduction?
- Multiple Pregnancy: Twins or More
- multiple pterygium syndrome
- Multiple Sclerosis (MS)
- Multiple Sclerosis, Deciding About Disease-Modifying Therapy
- Multiple sclerosis: Rehabilitation programs
- Multiple sclerosis: Should I start taking medicines for MS?
- Multiple Sulfatase Deficiency
- Multiple Sulfatase Deficiency (DOC 13)
- Multiple Sulfatase Deficiency Syndrome
- Multiple Symmetric Lipomatosis
- Multiple System Atrophy
- Multisynostotic Osteodysgenesis with Long Bone Fractures
- Mulvihill Smith Syndrome
- Mumps
- Munchausen Syndrome by Proxy
- MURCS Association
- Murk Jansen Type Metaphyseal Chondrodysplasia
- Muscle Carnitine Deficiency
- Muscle Core Disease
- Muscle Phosphofructokinase Deficiency
- Muscle-liver-brain Nanism
- Muscular Central Core Disease
- Muscular Dystrophies, Limb Girdle
- Muscular Dystrophy Fukuyama Type
- Muscular Dystrophy, Becker
- Muscular Dystrophy, Classic X-linked Recessive
- Muscular Dystrophy, Congenital Progressive with Mental Retardation
- Muscular Dystrophy, Congenital With Central Nervous System Involvement
- Muscular Dystrophy, Congenital, Fukuyama Type
- Muscular Dystrophy, Duchenne
- Muscular Dystrophy, Emery Dreifuss
- Muscular Dystrophy, Facioscapulohumeral
- Muscular Dystrophy, Landouzy Dejerine
- muscular dystrophy, oculogastrointestinal
- Muscular Dystrophy, Oculopharyngeal
- Muscular Rigidity - Progressive Spasm
- Musculoaponeurotic fibromatosis
- Music Therapy
- Mutism, Elective (obsolete)
- Mutism, Selective
- MWS
- MWS
- MWS
- Myasthenia Gravis
- Myasthenia Gravis Pseudoparalytica
- Myasthenic Syndrome of Lambert-Eaton
- Mycosis Fungoides
- Mycosis fungoides and the sezary syndrome: Treatment - Health Professional Information [NCI PDQ]
- Mycosis fungoides and the sezary syndrome: Treatment - Patient Information [NCI PDQ]
- Myelodysplasia
- Myelodysplastic and Myeloproliferative Diseases: Treatment - Patient Information [NCI PDQ]
- Myelodysplastic Syndromes
- Myelodysplastic syndromes: Treatment - Health Professional Information [NCI PDQ]
- Myelodysplastic syndromes: Treatment - Patient Information [NCI PDQ]
- Myelodysplastic/Myeloproliferative Diseases: Treatment - Health Professional Information [NCI PDQ]
- Myelofibrosis and Myeloid Metaplasia
- Myelofibrosis with Myeloid Metaplasia
- Myeloma, Multiple
- Myelomatosis
- Myhre Syndrome
- Myocardial Infarction (Heart Attack)
- Myoclonic Encephalopathy, Kinsbourne Type
- Myoclonic Epilepsy
- Myoclonic Progressive Familial Epilepsy
- Myoclonus Epilepsy
- Myoclonus Epilepsy Associated with Ragged Red Fibers
- Myoclonus, General
- Myoencephalopathy Ragged-Red Fiber Disease
- Myofascial Pain Syndrome
- Myomectomy
- myoneurogastrointestinal encephalopathy syndrome
- Myopathy of Congenital Fiber Type Disproportion
- Myopathy with Sarcoplasmic Bodies and Intermediate Filaments
- Myopathy, Central Core
- Myopathy, Central Fibrillar
- Myopathy, Congenital, Batten Turner Type
- Myopathy, Congenital, With Fiber-Type Disproportion
- Myopathy, Desmin Storage
- Myopathy, Mitochondrial-Encephalopathy-Lactic Acidosis-Stroke
- Myopathy, Myotubular
- Myopathy, Scapuloperoneal
- Myopathy-Marinesco-Sjogren Syndrome
- Myophosphorylase Deficiency
- Myopia (Nearsightedness)
- Myopia, Corneal Ring Implants for
- Myositis Ossificans Progressiva
- Myositis, Inclusion Body
- myotonia atrophica
- Myotonia Congenita
- Myotonia Congenita Intermittens
- Myotonic Myopathy, Dwarfism, Chondrodystrophy, Ocular and Facial Anomalies
- Myotubular Myopathy
- Myotubular Myopathy Type 1 (MTM1)
- Myotubular Myopathy, X-linked
- Myproic Acid, Fetal Effects From
- Myriachit (Observed in Siberia)
