Types of Psoriasis

  1. PLAQUE PSORIASIS – Plaque psoriasis is the most common type of psoriasis (2-3% of the U.S. population) and is characterized by red skin covered with silvery scales and inflammation. Patches of circular- or oval-shaped red plaques that itch or burn are typical of plaque psoriasis.
  2. GUTTATE PSORIASIS – Guttate psoriasis is a type of psoriasis that looks like small, salmon-pink drops on the skin. The word guttate is derived from the Latin word gutta, meaning drop. Usually there is a fine scale on the droplike lesion that is much finer than the scales in plaque psoriasis, which is the most common type of psoriasis.  The trigger to the disease is often a streptococcal (bacterialinfection. The eruption of the lesions on the skin usually happens within two to three weeks of strep throat. The outbreak can go away and not reoccur. Outbreaks may also go away and come back, particularly if the person is a strep carrier (always carries streptococcal bacteria in his respiratory system).  The sudden appearance of an outbreak may be the first psoriasis outbreak for some people. Alternatively, a person who has had plaque psoriasis for a long time may suddenly have an episode of guttate psoriasis. This type of psoriasis can also be chronic and can be triggered by infections other than those from streptococcal bacteria. For example, the chickenpox or colds can trigger the psoriasis. (Source:  http://www.emedicinehealth.com/guttate_psoriasis/article_em.htm)
  3. PUSTULAR PSORIASIS – Pustular psoriasis is an uncommon form of psoriasis. Pustular psoriasis appears as clearly defined, raised bumps that are filled with a white, thick fluid composed of white blood cells, pus. The skin under and around these bumps is red. Although pus is often a sign of infection, there is no evidence that this plays any role in pustular psoriasis.  The skin changes you may notice before, during, or after an episode of pustular psoriasis may be similar to those of regular psoriasis. People with the usual skin symptoms of psoriasis have patches of raised skin with scales. Pustular psoriasis is classified into one of several types, depending on your symptoms. Your symptoms may be sudden and severe (acute), long term (chronic), or somewhere in between (subacute). The generalized type (so called von Zumbusch type) affects your whole body with more than just skin symptoms producing a generalized feeling of systemic illness often with fever. A ring-shaped (annular, or circinate) type has also been described. It is usually subacute or chronic, and people with this type do not usually have symptoms aside from the skin symptoms. Pustules may be localized to the palms and soles (palmoplantar pustulosis) or to the fingertips and nails (acrodermatitis continua of Hallopeau). The least common type is the juvenile, or infantile type, which occurs in children.  (Source:  http://www.emedicinehealth.com/pustular_psoriasis/article_em.htm)
  4. PSORIATIC ARTHRITIS – Psoriatic Arthritis. Individuals with psoriatic arthritis have inflammation in their joints that could result in permanent joint damage if not treated aggressively. Recent information indicates the most patients with psoriasis are also predisposed to obesitydiabetes, and early cardiovascular diseases. It is now becoming apparent that psoriasis is not just a skin disease but can have widespread systemic effects.  Psoriatic arthritis is a condition in which a person has both psoriasis and a related form of arthritis. Psoriasis is a common skin condition. A person with psoriasis typically has patches of raised red skin with scales. The affected skin can look different depending on the type of psoriasis the individual has. Arthritis is joint inflammation. Psoriatic arthritis is a particular type of aggressive and potentially destructive, inflammatory arthritis.  Psoriatic arthritis is an autoimmune disease, meaning that your cells and antibodies (part of your immune system) attack your own tissues. Rarely, a person can have psoriatic arthritis without having obvious psoriasis. Usually, the more severe the skin symptoms are, the greater the likelihood a person will have psoriatic arthritis. (Source:  http://www.emedicinehealth.com/psoriatic_arthritis/article_em.htm)

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