What Is Psoriasis Glossary of Terms

The following are health and medical definitions of terms that appear in the What Is Psoriasis article.

Alcoholism: Physical dependence on alcohol to the extent that stopping alcohol use would b...

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Arthritis: Inflammation of a joint. When joints are inflamed they can develop stiffness, w...

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Bumps: The raised area of a bump or bruise results from blood leaking from these injured b...

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Cardiovascular: Relating to the circulatory system, which comprises the heart and blood ve...

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Cell: The basic structural and functional unit of any living thing. Each cell is a small c...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Contagious: capable of being transmitted from one human to another human via direct or ind...

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Diabetes: Usually refers to diabetes mellitus or, less often, to diabetes insipidus. Diabe...

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Elbow: The juncture of the long bones in the middle portion of the upper extremity. The bo...

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Erythrodermic psoriasis: A particularly inflammatory form of psoriasis that often affects ...

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Flare: 1. an exacerbation of a chronic disease. Sometimes referred to as a flare-up, a fla...

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Genes: The basic biological units of heredity. Segments of deoxyribonucleic acid (DNA) nee...

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Guttate psoriasis: A type of psoriasis characterized by red, scaly plaques of inflamed ski...

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Immune: Protected against infection, usually by the presence of antibodies.

Immune system: A complex system that is responsible for distinguishing a person from every...

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Infection: The invasion and multiplication of microorganisms such as bacteria, viruses, an...

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Inflammation: A localized reaction that produces redness, warmth, swelling, and pain as a ...

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Injury: Harm or hurt. To harm, hurt, or wound. The word injure may be in physical or emot...

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Joint: The area where two bones are attached for the purpose of permitting body parts to m...

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Obesity: The state of being well above one's normal weight.

Plaque:1. An semi-hardened accumulation of substances from fluids that bathe an are...

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Plaque psoriasis: The most common form of psoriasis -- about 80% of people with psoriasis ...

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Psoriasis: A reddish, scaly rash often located over the surfaces of the elbows, knees, sca...

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Psoriatic arthritis: Joint inflammation that is associated with psoriasis. Psoriatic arthr...

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Pus: A thick, whitish-yellow fluid that results from the accumulation of white blood cells...

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Pustular psoriasis: A type of recurring psoriasis characterized by the appearance of pus-...

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Scaling: Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum)...

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Systemic: Affecting the entire body. A systemic disease such as diabetes can affect the wh...

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Trigger: Something that either sets off a disease in people who are genetically predispose...

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White blood cell: One of the cells the body makes to help fight infections. There are seve...

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