Psoriasis Causes and Treatments: How and Why Psoriasis Occurs

Psoriasis Causes and Treatment

The most common symptoms include:

  • joint pain, swelling or stiffness
  • red joints that may feel warm
  • pain in the feet and ankles
  • changes in fingernails or toenails
  • lower back pain

This kind of ailment can remain relatively mild, but in many cases it progresses to a severe and destructive disease. Typically, periods of outbreaks alternate with states of remission. Prolonged inflammation could result in permanent joint or bone damage, that is why early diagnosis and treatment is crucial. psoriasis causes,

The exact cause is not known, but several studies suggest a genetic connection.

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Symptoms of this type disease resemble many other diseases. There is no one test to positively identify the disease, but a doctor specializing in joint diseases may be able to accurately diagnose the condition with a variety of tests.

Contributing factors to a positive diagnosis include:

  • a family history of psoriatic arthritis, or a patient with psoriasis
  • testing negatively for rheumatoid arthritis
  • arthritis in the upper finger joints
  • deep ridges or pits in toenails or fingernails
  • x-rays indicating changes in the joints

Other symptoms separating psoriatic arthritis from other types of arthritis may include inflammation at the back of the heel or on the soles of the feet. Psoriasis causes and treatment.


Psoriatic arthritis is classified into five main types:

  • Asymmetric – approximately 70% of patients are affected by this type. It is usually mild and does not show up in the same joints on both sides, meaning, if your right heel is affected, your left heel won't be. Usually less than three joints are affected.
  • Symmetric – approximately 25% of the cases are this type. Joints on both sides of the body are affected simultaneously. Nearly half of the people with this type are left completely disabled.
  • Arthritis mutilans – this type is extremely destructive and deforming. Luckily, less than 5% of patients are affected. The condition progresses over months or years and causes severe damage to the joints.
  • Spondylitis - usually characterized by stiffness in the neck or spine, but may affect feet and hands, as well.
  • Distal interphalangeal predominant – approximately 5% of patients have this type. It is characterized by stiffness and inflammation in the upper fingers. Visible changes appear in fingernails and toenails, as well. Psoriasis causes and treatment.



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National Institute of Arthritis and Musculoskeletal and Skin Diseases