Psoriasis is a common skin condition that is thought to affect between 2% and 3% of the population of the United Kingdom and Ireland. It is an immune condition which affects the skin but is also associated with a condition called psoriatic arthritis which affects the joints. However, it is much more than just a skin condition. It can also affect people physically and psychologically.
When a person has psoriasis, the skin replacement process speeds up, taking just a few days to replace skin cells that usually take 21-28 days. This results in an accumulation of skin cells on the surface of the skin, in the form of psoriatic plaques. This process is the same wherever it occurs on the body.
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