Skip navigation
A service of the
U.S. National Library of Medicine
National Institutes of Health
Home
About MedlinePlus
Site Map
FAQs
Contact Us
Search MedlinePlus
Health Topics
Drugs & Supplements
Videos & Cool Tools
ESPAÑOL
Other Topics:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
XYZ
All Topics
Health Topics: M
Macular Degeneration
Mad Cow Disease see
Creutzfeldt-Jakob Disease
Magnesium see
Minerals
Magnetic Resonance Imaging see
MRI Scans
Makeup see
Cosmetics
Malabsorption Syndromes
Malaria
Male Breast Cancer
Male Genital Disorders see
Penis Disorders
;
Testicular Disorders
Male Infertility
Male Menopause see
Men's Health
Male Sterilization see
Vasectomy
Malignancy see
Cancer
Malnutrition
Mammaplasty see
Breast Reconstruction
Mammography
Man-Made Disasters see
Biodefense and Bioterrorism
;
Chemical Emergencies
;
Radiation Emergencies
Managed Care
Mandibular Disorders see
Jaw Injuries and Disorders
Manic-Depressive Illness see
Bipolar Disorder
Maple Syrup Urine Disease see
Genetic Brain Disorders
Marfan Syndrome
Marijuana
Mastectomy
Maxillary Disorders see
Jaw Injuries and Disorders
MCI see
Mild Cognitive Impairment
MDMA see
Club Drugs
MDS see
Myelodysplastic Syndromes
Measles
Mediastinal Disorders see
Chest Injuries and Disorders
Medicaid
Medical Device Safety
Medical Ethics
Medical Professions see
Health Occupations
Medical Research see
Understanding Medical Research
Medicare
Medicare Prescription Drug Coverage
Medication Errors
Medicinal Herbs see
Herbal Medicine
Medicines
Medicines and Children
Medicines and Pregnancy see
Pregnancy and Medicines
Medicines, Over-the-Counter see
Over-the-Counter Medicines
Mediterranean Anemia see
Thalassemia
Melanoma
Memory
Men's Health
Meniere's Disease
Meningioma see
Brain Cancer
Meningitis
Meningococcal Infections
Meningococcemia see
Meningococcal Infections
Meniscus see
Knee Injuries and Disorders
Menopausal Hormone Therapy see
Hormone Replacement Therapy
Menopause
Menopause, Male see
Men's Health
Menstruation
Mental Disorders
Mental Health
Mental Health, Child see
Child Mental Health
Mental Health, Teen see
Teen Mental Health
Mental Retardation see
Developmental Disabilities
Mercury
Merkel Cell Cancer see
Skin Cancer
Mesothelioma
Metabolic Disorders
Metabolic Syndrome
Methadone see
Heroin
;
Pain Relievers
Methamphetamine
Methicillin Resistant Staphylococcus Aureus see
MRSA
MI see
Heart Attack
Micturition see
Urine and Urination
Migraine
Mild Cognitive Impairment
Military Health see
Veterans and Military Health
Milk Allergy see
Food Allergy
Milk Intolerance see
Lactose Intolerance
Minerals
Mini-Stroke see
Transient Ischemic Attack
Miscarriage
Mitral Valve Prolapse
Mixed Connective Tissue Disease see
Connective Tissue Disorders
Mobility Aids
Molar Pregnancy see
Cancer and Pregnancy
Molds
Moles
Molluscum Contagiosum see
Skin Infections
Moniliasis see
Yeast Infections
Monkeypox Virus Infections
Mono see
Infectious Mononucleosis
Mononucleosis see
Infectious Mononucleosis
Mood Disorders
Morphea see
Scleroderma
Morton's Neuroma see
Foot Injuries and Disorders
Mosquito Bites see
Insect Bites and Stings
Motion Sickness
Motor Vehicle Safety
Mouth Cancer see
Oral Cancer
Mouth Disorders
Movement Disorders
MRI Scans
MRSA
MS see
Multiple Sclerosis
Mucocutaneous Lymph Node Syndrome see
Kawasaki Disease
Mucolipidoses see
Metabolic Disorders
Mucopolysaccharidoses see
Metabolic Disorders
Multifocal Atrial Tachycardia see
Arrhythmia
Multiple Births see
Twins, Triplets, Multiple Births
Multiple Endocrine Neoplasia see
Endocrine Diseases
;
Parathyroid Disorders
Multiple Myeloma
Multiple Sclerosis
Mumps
Muscle Cramps
Muscle Disorders
Muscle Strain see
Sprains and Strains
Muscular Dystrophy
Myasthenia Gravis
Mycobacterial Infections
Mycoses see
Fungal Infections
Myelodysplastic Syndromes
Myelomeningocele see
Spina Bifida
Myeloproliferative Disorders see
Bone Marrow Diseases
Myocardial Infarction see
Heart Attack
Myopathies see
Muscle Disorders
Myopia see
Refractive Errors
Myositis