A to Z
Health Topics
- Macitentan
- Macitentan and Tadalafil
- Mad Cow Disease and Variant Creutzfeldt-Jakob Disease
- Maggie's Story: Making Changes for Her Health
- Magnesium (Mg) Test
- Magnesium Citrate
- Magnesium Gluconate
- Magnesium Hydroxide
- Magnesium Oxide
- Magnesium Sulfate, Potassium Sulfate, and Sodium Sulfate
- Magnetic Field Therapy
- Magnetic Resonance Angiogram (MRA)
- Magnetic Resonance Cholangiogram
- Magnetic Resonance Imaging (MRI)
- Magnetic Resonance Imaging (MRI) of the Abdomen
- Magnetic Resonance Imaging (MRI) of the Breast
- Magnetic Resonance Imaging (MRI) of the Head
- Magnetic Resonance Imaging (MRI) of the Knee
- Magnetic Resonance Imaging (MRI) of the Shoulder
- Magnetic Resonance Imaging (MRI) of the Spine
- Maintaining a Healthy Relationship With Someone Who Has a Mental Health Condition
- Major Nutrients in Food
- Make the Most of Your Doctor Visit
- Making a Birth Plan
- Making a Change That Matters
- Making a Plan to Cut Back on Alcohol Use
- Making a Plan to Help Someone Get Treatment for Alcohol Use Disorder
- Making a Suicide Safety Plan
- Making It Easier to Wear a Mask to Help Prevent Infections
- Making the Most of Your Appointment
- Making Wise Health Decisions
- Making Your Change Happen
- Malabsorption Syndrome
- Malaria
- Malathion Topical
- Male Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Male Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Male Condoms
- Male Genital Problems and Injuries
- Male Osteoporosis
- Malignant Mesothelioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Malignant Mesothelioma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Malocclusion and Orthodontics
- Mammogram
- Mammogram: What to Expect
- Manage Stress for Your Heart
- Managing a Croup Attack
- Managing Cravings When You're Quitting Tobacco
- Managing Emotional Changes During Pregnancy
- Managing Job Stress
- Managing Pain While You're in the Hospital
- Managing Relationship Stress for Couples
- Managing Relationship Stress for Families
- Managing Seasonal Allergies
- Managing Your Emotional Reactions
- Managing Your Medical Bills
- Managing Your Medicines
- Managing Your Toddler's Frustrating Behaviors
- Manual Therapy for Neck Pain
- Maprotiline
- Maralixibat
- Maraviroc
- Margetuximab-cmkb Injection
- Marijuana
- Marine Stings and Scrapes
- Marine Toxins
- Martha's Story: A Voice for Recovery
- Masculinizing Surgeries for Gender Affirmation
- Massage Therapy
- Massage Therapy During Pregnancy
- Mastectomy (Removal of the Breast) for Breast Cancer
- Mastectomy for Breast Cancer: Before Your Surgery
- Mastectomy for Breast Cancer: Returning Home
- Master List of Medicines
- Mastitis While Breastfeeding
- Mavacamten
- Mavorixafor
- Maze Procedure
- MBD4-Associated Neoplasia Syndrome (PDQ®): Genetics - Health Professional Information [NCI]
- MDMA (Ecstasy)
- Meal Planning
- Measles (Rubeola)
- Measuring the Intensity of Your Activity
- Measuring Your Waist
- Mebendazole
- Mecasermin Injection
- Mechlorethamine
- Mechlorethamine Topical
- Meclizine
- Meclofenamate
- Media and Your Child: Making Choices
- Medial Collateral Ligament (MCL) Injury
- Mediastinoscopy
- Medical and Nonmedical Options for Gender Affirmation
- Medical Checkups for Adolescents
- Medical History and Physical Exam for Dementia or Alzheimer's Disease
- Medical Marijuana
- Medical Specialists
- Medical Tests: Questions to Ask the Doctor
- Medicare Hospice Benefit
- Medicare: What You Need to Know
- Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Medicine Blood Level Test
- Medicine for High Blood Pressure
- Medicine or Other Drug Use and Sleep Problems
- Medicines and Other Substances That Can Cause Symptoms of Depression
- Medicines During Pregnancy
- Medicines for ADHD (Attention Deficit Hyperactivity Disorder)
- Medicines for Bone Loss
- Medicines for Cluster Headaches
- Medicines for Depression
- Medicines or Vitamins That Can Cause Gas, Bloating, or Burping
- Medicines That Can Cause Acute Kidney Injury
- Medicines That Can Cause Blisters
- Medicines That Can Cause Changes in Menstrual Bleeding
- Medicines That Can Cause Weakness or Fatigue
- Medicines That Cause Hearing Loss
- Medicines That May Cause Vaginal Symptoms
- Meditation
- Mediterranean Diet
- Medroxyprogesterone
- Medroxyprogesterone Injection
- Mefenamic Acid
- Mefloquine
- Megestrol
- Melanoma Excision Surgery
- Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Melatonin
- MELD Score (Model for End-Stage Liver Disease)
- Meloxicam
- Meloxicam Injection
- Melphalan
- Melphalan Flufenamide Injection
- Melphalan Injection
- Memantine
- Memory Problems: Issues With Driving
- Memory Problems: Tips for Helping the Person With Daily Tasks
- Memory Problems: Wandering
- Men's Health
- Menarche
- Ménière's Disease
- Meningitis
- Meningococcal ACWY Vaccine: What You Need to Know
- Meningococcal ACWY Vaccines (MenACWY)
- Meningococcal B Vaccine: What You Need to Know
- Meniscectomy for a Meniscus Tear
- Meniscus Repair
- Meniscus Repair: Before Your Surgery
- Meniscus Surgery: Recovery Time
- Meniscus Tear
- Meniscus tear: Fast Facts
- Meniscus Tear: Rehabilitation Exercises
- Meniscus Tear: Should I Have Surgery?
- Menopause and Perimenopause
- Menopause and Your Risk for Other Health Concerns
- Menopause: Managing Hot Flashes
- Menopause: Should I Use Hormone Therapy (HT)?
- Menstrual Cramps
- Menstrual Cramps: Relieving Pain
- Menstrual Cups
- Menstrual Diary to Monitor Premenstrual Symptoms
- Menstruation: Not Having a Period by Age 15
- Mental and Behavioral Health
- Mental Health Assessment
- Mental Health Conditions and Stigma
- Meperidine
- Meperidine Injection
- Mepolizumab Injection
- Meprobamate
- Mercaptopurine
- Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Meropenem and Vaborbactam Injection
- Meropenem Injection
- Mesalamine
- Mesalamine Rectal
- Mesna
- Mesna Injection
- Mesoridazine
- Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
- Metabolic Syndrome
- Metaproterenol
- Metastatic Melanoma
- Metastatic Squamous Neck Cancer With Occult Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Metastatic Squamous Neck Cancer with Occult Primary Treatment (PDQ®): Treatment - Patient Information [NCI]
- Metaxalone
- Metformin
- Metformin for Diabetes
- Methadone
- Methadone Injection
- Methamphetamine
- Methamphetamine
- Methazolamide
- Methenamine
- Methicillin-Resistant Staphylococcus Aureus (MRSA)
- Methimazole
- Methocarbamol
- Methotrexate
- Methotrexate Injection
- Methoxy Polyethylene Glycol-Epoetin Beta Injection
- Methsuximide
- Methyclothiazide
- Methyldopa
- Methyldopa and Hydrochlorothiazide
- Methylergonovine
- Methylnaltrexone
- Methylnaltrexone Injection
- Methylphenidate
- Methylphenidate Transdermal Patch
- Methylprednisolone
- Methylprednisolone Injection
- Metipranolol Ophthalmic
- Metoclopramide
- Metoclopramide Injection
- Metoclopramide Nasal Spray
- Metolazone
- Metoprolol
- Metronidazole
- Metronidazole Injection
- Metronidazole Topical
- Metronidazole Vaginal
- Mexiletine
- Micafungin Injection
- Miconazole Buccal
- Miconazole Topical
- Miconazole Vaginal
- Midazolam
- Midazolam Injection
- Midazolam Nasal Spray
- Middle East Respiratory Syndrome (MERS)
- Midodrine
- Midostaurin
- Mifepristone (Korlym)
- Mifepristone (Mifeprex)
- Miglitol
- Miglustat
- Migraine Headache Triggers
- Migraine Headaches
- Migraine Headaches in Children
- Migraines: Finding and Avoiding Triggers
- Mild Cognitive Impairment and Dementia
- Milestones for 10-Year-Olds
- Milestones for 2-Year-Olds
- Milestones for 3-Year-Olds
- Milestones for 4-Year-Olds
- Milestones for 5-Year-Olds
- Milestones for 6-Year-Olds
- Milestones for 7-Year-Olds
- Milestones for 8-Year-Olds
- Milestones for 9-Year-Olds
- Milestones for a 1-Year-Old
- Milestones for Ages 11 to 14
- Milestones for Ages 15 to 18
- Milestones for an 18-Month-Old Child
- Military Sexual Trauma
- Milk Oversupply
- Milk Thistle
- Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Milnacipran
- Mind-Body Wellness
- Mindfulness Tips for Teens
- Mindfulness-Based Stress Reduction
- Mindfulness: What Is It?
- Minerals: Their Functions and Sources
- Minocycline
- Minocycline Topical
- Minoxidil
- Minoxidil Topical
- Mipomersen Injection
- Mirabegron
- Mirikizumab-mrkz Injection
- Mirtazapine
- Mirvetuximab soravtansine-gynx Injection
- Miscarriage
- Misoprostol
- Missed or Irregular Periods
- Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Mitapivat
- Mitochondrial Diseases
- Mitomycin
- Mitomycin Pyelocalyceal
- Mitotane
- Mitoxantrone Injection
- Mitral Valve Prolapse
- Mitral Valve Regurgitation
- Mitral Valve Regurgitation: Repair or Replace the Valve?
- Mitral Valve Repair Surgery
- Mitral Valve Replacement Surgery
- Mitral Valve Stenosis
- Mitral Valve Stenosis: Repair or Replacement?
- Mittelschmerz (pain during ovulation): Fast facts
- MMR Vaccine (Measles, Mumps, and Rubella)
- MMR Vaccine (Measles, Mumps, and Rubella): What You Need to Know
- MMRV Vaccine (Measles, Mumps, Rubella, and Varicella): What You Need to Know
- Mobility After a Spinal Cord Injury
- Mobility Problems: Getting In and Out of a Car Safely
- Mobocertinib
- Modafinil
- Modify Recipes for a Heart-Healthy Diet
- Modifying Activities for Osteoarthritis
- Moexipril
- Mogamulizumab-kpkc Injection
- Mohs Surgery for Skin Cancer
- Moisture Alarms for Bed-Wetting
- Molar Pregnancy
- Molindone
- Molluscum Contagiosum
- Molnupiravir
- Momelotinib
- Mometasone Nasal Spray
- Mometasone Oral Inhalation
- Mometasone Topical
- Monitoring Your Medicines in the Hospital
- Monomethyl Fumarate
- Mononucleosis (Mono)
- Mononucleosis Tests
- Montelukast
- Mood Disorders in Children
- Mood-Stabilizing Medicines
- Morphine
- Morphine Injection
- Morphine Rectal
- Morton neuroma: Fast Facts
- Morton's Neuroma
- Mosunetuzumab-axgb Injection
- Motion Sickness
- Motivational Therapy for Bed-Wetting
- Mouth and Dental
- Mouth and Dental Injuries
- Mouth Guard
- Mouth Problems, Noninjury
- Mouth Wounds: How to Stop Bleeding
- Moving More For Mental Wellness
- Moxetumomab Pasudotox-tdfk Injection
- Moxifloxacin
- Moxifloxacin Injection
- Moxifloxacin Ophthalmic
- Mpox
- Mucous Cyst Ganglions
- Multi-Organ Transplants
- Multiple Endocrine Neoplasia Type 2 (MEN2) (PDQ®): Genetics - Health Professional Information [NCI]
- Multiple Pregnancy: Preterm Birth
- Multiple Pregnancy: Twins or More
- Multiple Sclerosis (MS)
- Multiple Sclerosis: Mental and Emotional Problems
- Multiple Sclerosis: Modifying Your Home
- Multiple Sclerosis: MRI Results
- Multisystem Inflammatory Syndrome in Children (MIS-C)
- Mumps
- Munchausen Syndrome by Proxy (MSBP)
- Mupirocin
- Muscle Cramps
- Muscle Relaxants During Surgery
- Music Therapy
- My Asthma Action Plan
- My Birth Plan
- My Reasons to Quit Smoking
- Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
- Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Managing Your Energy
- Mycophenolate
- Mycophenolate Injection
- Mycoplasma Genitalium
- Mycosis Fungoides (Including Sézary Syndrome) Treatment (PDQ®): Treatment - Patient Information [NCI]
- Mycosis Fungoides and Other Cutaneous T-Cell Lymphomas Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Patient Information [NCI]
- Myelodysplastic/ Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Patient Information [NCI]
- Myelodysplastic/Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Myelogram
- Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Myofascial Pain Syndrome
- Myoglobin Test
- Myomectomy
- Myths About Tourette's Disorder
- Myths and Facts About Depression
- Myxoma Tumors of the Heart