Conditions starting with M

Macular Degeneration

Macular degeneration, or age-related macular degeneration (AMD), causes vision loss in older adults. Learn about the types and what can help.

Macular hole

Explore the homeopathic remedies traditionally associated with Macular hole and related practitioner context.

Malabsorption Syndromes

If you have a malabsorption syndrome, your small intestine cannot absorb nutrients from foods. Learn more about different syndromes and symptoms.

Malaria

Malaria is a disease caused by a parasite transmitted by mosquitoes. It is a major cause of death worldwide. Find out about prevention and treatment.

Male Breast Cancer

Did you know that men can get breast cancer? Although breast cancer is much more common in women, men can get it too. Learn more.

Male Infertility

Infertility is when a woman can't get pregnant after a year or keeps having miscarriages. Read about the causes of male infertility and treatments.

Malignant brain tumour (brain cancer)

Explore the homeopathic remedies traditionally associated with Malignant brain tumour (brain cancer) and related practitioner context.

Mallet finger

Explore the homeopathic remedies traditionally associated with Mallet finger and related practitioner context.

Malnutrition

People suffer from hunger if they don't get enough food. Over time this can cause malnutrition. Some diseases can also cause malnutrition. Read more.

Managed Care

Managed care plans are a type of health insurance. Plans that restrict your choices usually cost less. Flexible plans may cost more. Learn more.

Marfan Syndrome

Marfan syndrome is a disorder that affects connective tissue. Marfan syndrome can be mild to severe. Read about symptoms and outlook.

Marijuana

Marijuana contains the mind-altering chemical THC. Some U.S. states approve the use of medical marijuana. Read about marijuana and its effects.

Mastectomy

A mastectomy is a surgery to remove a breast or part of a breast in order to treat breast cancer. A lumpectomy is done to remove a tumor. Read more.

Mastitis

Explore the homeopathic remedies traditionally associated with Mastitis and related practitioner context.

Mastocytosis

Explore the homeopathic remedies traditionally associated with Mastocytosis and related practitioner context.

Mastoiditis

Explore the homeopathic remedies traditionally associated with Mastoiditis and related practitioner context.

Measles

Measles or rubeola is an infectious disease caused by a virus. It spreads easily person to person, causes red blotchy rash along with other symptoms.

Medicaid

Medicaid is government health insurance that helps low-income people in the U.S. pay their medical bills. Learn about services and eligibility.

Medical Device Safety

Medical devices can diagnose, cure, treat, or prevent some diseases. It is important to know how to use medical devices safely. Read more.

Medical Ethics

Most areas of healthcare have an ethical aspect. Learn about ethical issues in healthcare and bioethics.

Medically unexplained symptoms

Explore the homeopathic remedies traditionally associated with Medically unexplained symptoms and related practitioner context.

Medicare

Medicare is the U.S. government's health insurance program for people age 65 and older. Medicare has four parts (A, B, C, and D). Read more.

Medication Errors

Medicines cure infection, prevent problems, and ease pain. Medicines can also cause harm if not used correctly. Learn about medication errors.

Medicines

You may take medicines every day or only once in a while. Either way, make sure your medicines are safe and will help you get better. Learn more.

Medicines and Children

Never guess how to give medicines to a child. When it comes to taking medicines, kids aren't just small adults. Learn how to follow the drug label.

Melanoma

Melanoma is the most serious type of skin cancer. Most have a black or black-blue area. Learn the 'ABCDE' of what to watch for and treatment options.

Melanoma skin cancer

Explore the homeopathic remedies traditionally associated with Melanoma skin cancer and related practitioner context.

Memory

Did you forget where you put your keys? It's normal to forget things, but it can be a sign of memory problems. Read more on memory and memory loss.

Meniere's Disease

Meniere's disease is a disorder of the inner ear. Symptoms include severe dizziness, tinnitus, hearing loss, and ear pressure or pain. Learn more.

Meningitis

Meningitis or spinal meningitis is inflammation of the tissue around the brain and spinal cord. Discover the differences between types of meningitis.

Meningococcal Disease

Meningococcal disease is the name for illness caused by meningococcal bacteria. The illnesses are often severe, but vaccines can help prevent them. Learn more.

Meniscus tear (knee cartilage damage)

Explore the homeopathic remedies traditionally associated with Meniscus tear (knee cartilage damage) and related practitioner context.

Menopause

Menopause is when a woman stops having a period. The transition to menopause usually starts in your 40's. Know the symptoms and how to deal with them.

Menstruation

Menstruation (or period) happens monthly. As the uterus sheds its lining, vaginal bleeding follows. Menstrual blood is made of blood and tissue.

Mental Disorders

Mental disorders (also called mental illnesses) include a wide range of problems. There are many causes. Learn more about what can help.

Mental Health

Mental health includes our emotional, psychological, and social well-being. It affects how we think, feel, and act. Your mental health can change over time.

Mercury

It is important to protect your family from mercury exposure. Learn about mercury and how to limit exposure.

Mesothelioma

Mesothelioma is a tumor of mesothelium, a tissue that lines lungs and other organs. Most people who get it have inhaled asbestos. Read the symptoms.

Metabolic Disorders

Your metabolism makes energy from the food you eat. A metabolic disorder disrupts this process. One example is diabetes. Learn more.

Metabolic Syndrome

Metabolic syndrome (also called insulin resistance syndrome) is a group of conditions that put you at risk for heart disease and diabetes. Read more.

Methamphetamine

Methamphetamine (also known as meth or crystal meth) is a very addictive drug. Read about the signs of meth addiction and health problems it causes.

Middle East respiratory syndrome (MERS)

Explore the homeopathic remedies traditionally associated with Middle East respiratory syndrome (MERS) and related practitioner context.

Migraine

Migraines are pulsing or throbbing headaches in one area of the head. Learn about other symptoms, what triggers migraines, and how to treat them.

Mild Cognitive Impairment

In mild cognitive impairment (MCI), you have more memory and thinking problems than others your age, but they don't interfere with your everyday life.

Minerals

Your body uses minerals to build bones, make hormones, and regulate your heartbeat. Read about the types of minerals and how to get them.

Miscarriage

A miscarriage is the loss of a pregnancy during the first 13 weeks of pregnancy. Read about symptoms and how to cope if you've suffered a miscarriage.

Mitochondrial Diseases

Mitochondria make energy for your cells. Diseases can affect mitochondria, often causing nerve and muscle problems. Find out more.

Mitral Valve Prolapse

Mitral valve prolapse (MVP) occurs when one of your heart's valves doesn't work properly. Problems are rare. Learn about symptoms and treatment.

Mobility Aids

Mobility aids help you walk or move if you are disabled or have an injury. Choosing these devices takes time and research. Learn more.

Molar pregnancy

Explore the homeopathic remedies traditionally associated with Molar pregnancy and related practitioner context.

Molds

If you have wet spots in your house, you will probably get mold. Molds, such as black mold, can cause health problems. Read more.

Moles

Moles are skin growths, most people have them. Nevus is an unusual mole or a birthmark. Have them checked if they should change in size or color.

Molluscum contagiosum

Explore the homeopathic remedies traditionally associated with Molluscum contagiosum and related practitioner context.

Mood Disorders

Most people feel sad or irritable sometimes. They may say they're in a bad mood. But mood disorders affect your everyday emotional state. Learn more.

Morton's neuroma

Explore the homeopathic remedies traditionally associated with Morton's neuroma and related practitioner context.

Mosquito Bites

Mosquitoes can be more than just annoying; sometimes they spread diseases. Learn about the diseases and how to protect yourself from mosquito bites.

Motor neurone disease (MND)

Explore the homeopathic remedies traditionally associated with Motor neurone disease (MND) and related practitioner context.

Motor Vehicle Safety

Every year thousands of people in the U.S. die from car crashes. Read about how to be safe on the road.

Mouth cancer

Explore the homeopathic remedies traditionally associated with Mouth cancer and related practitioner context.

Mouth Disorders

Common mouth problems include cold sores, canker sores, thrush, dry mouth, and bad breath. Discover information on all of these common disorders.

Mouth ulcers

Explore the homeopathic remedies traditionally associated with Mouth ulcers and related practitioner context.

Movement Disorders

Movement disorders can be caused by nerve diseases, autoimmune diseases, infections and more. Many movement disorders are inherited.

Mpox

Mpox (monkeypox) is a rare disease caused by infection with the mpox virus. Learn about the symptoms and how it spreads, and vaccinations.

MRSA

MRSA infection is a staph infection that is resistant to some antibiotics. Read about MRSA symptoms, treatment, and prevention.

Mucositis

Explore the homeopathic remedies traditionally associated with Mucositis and related practitioner context.

Multiple Sclerosis

Multiple sclerosis (MS) slows down or blocks messages between the brain and body. MS can be mild or severe. Learn about MS symptoms and treatment.

Multiple system atrophy (MSA)

Explore the homeopathic remedies traditionally associated with Multiple system atrophy (MSA) and related practitioner context.

Mumps

Mumps symptoms include fever, headache, and muscle aches. There is no treatment, but the MMR vaccine can prevent it. Get the facts about the vaccine.

Muscle and joint discomfort

Explore the homeopathic remedies traditionally associated with Muscle and joint discomfort and related practitioner context.

Muscle and joint stiffness

Explore the homeopathic remedies traditionally associated with Muscle and joint stiffness and related practitioner context.

Muscle Cramps

Have you ever had sudden, painful cramps in a muscle? These muscle spasms (also called charley horse) are very common. Learn how to relieve the pain.

Muscle Disorders

Your muscles help you move and help your body work. Muscle disorders can cause weakness, pain or even paralysis. Read more about muscle disorders.

Muscular Dystrophy

Muscular dystrophy (MD) is characterized by progressive weakness and muscle damage. Read about who it affects and the prognosis.

Myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS)

Explore the homeopathic remedies traditionally associated with Myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS) and related practitioner context.

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a long-term illness. It causes severe fatigue and many other symptoms. Learn about managing them.

Myasthenia Gravis

Myasthenia gravis (MG) is an autoimmune disease that weakens the muscles under your control. Find out about MG causes, symptoms, and treatment.

Mycobacterial Infections

Mycobacteria are a type of germ. There are many different kinds. Read about the types of mycobacteria and the symptoms of infection.

Myelodysplastic syndrome (MDS)

Explore the homeopathic remedies traditionally associated with Myelodysplastic syndrome (MDS) and related practitioner context.

Myeloma

Explore the homeopathic remedies traditionally associated with Myeloma and related practitioner context.

Myositis

Myositis means inflammation of the muscles. Two specific types are polymyositis and dermatomyositis. Read about myositis symptoms and management.