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Arthritis is swelling of the joints. It’s painful and can limit your movement. There are many kinds of arthritis. Osteoarthritis…

A nail infection is caused by a fungus. This infection can happen in toenails and fingernails. It is more common…

Munchausen syndrome by proxy (MSP) is a mental illness. It is also a form of child abuse. It affects caregivers,…

Multiple myeloma is a kind of cancer in the bone marrow. It is caused when your body makes too many…

Morning sickness refers to the nausea and vomiting that some people have when they become pregnant. Morning sickness is very…

Mad cow disease is the common name for a rare and deadly brain disease. The disease is spread by eating…

Jock itch is a fungal skin infection. It is caused by a fungus commonly found in gyms and locker rooms…

Mass psychogenic illness is when people in a group start feeling sick at the same time with no physical or…

Natural rubber latex comes from a liquid in tropical rubber trees. The protein in this rubber can cause an allergic…

A hernia is a tear in your muscle or tissue that allows part of your insides to bulge out. Sometimes…

Irritable bowel syndrome (IBS) is a gastrointestinal (GI) disorder. It describes a group of symptoms that affect your large intestine…

Inhalant abuse is a form of substance abuse. It involves breathing in or sniffing household products on purpose to “get…

Inflammatory bowel disease (IBD) is the name of a group of disorders that cause the intestines to become inflamed (red…

Blood poisoning has nothing to do with poison. It’s caused when bacteria enter your bloodstream. That can happen through burns,…

Cervical dysplasia is when there are abnormal, or precancerous, cells in and around a woman’s cervix. This doesn’t mean you…