Psoriatic Arthritis, Causes, Signs and Symptoms, Diagnosis and Treatment.

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Chapters

0:00 Introduction
0:46 Causes of Psoriatic arthritis
1:25 Types of Psoriatic arthritis
2:31 Symptoms of Psoriatic arthritis
3:23 Treatment of Psoriatic arthritis



Psoriatic arthritis is a long-term inflammatory arthritis that occurs in people affected by the autoimmune disease psoriasis.[1][2] The classic feature of psoriatic arthritis is swelling of entire fingers and toes with a sausage-like appearance.[3] This often happens in association with changes to the nails such as small depressions in the nail (pitting), thickening of the nails, and detachment of the nail from the nailbed.[3] Skin changes consistent with psoriasis (e.g., red, scaly, and itchy plaques) frequently occur before the onset of psoriatic arthritis but psoriatic arthritis can precede the rash in 15% of affected individuals.[3] It is classified as a type of seronegative spondyloarthropathy.

Genetics are thought to be strongly involved in the development of psoriatic arthritis.[3] Obesity and certain forms of psoriasis are thought to increase the risk.[3]

Psoriatic arthritis affects up to 30% of people with psoriasis and occurs in both children and adults.[3] Approximately 40–50% of individuals with psoriatic arthritis have the HLA-B27 genotype.[3] The condition is less common in people of Asian or African descent and affects men and women equally.[3]