What is psoriasis and what symptoms may occur?
Psoriasis vulgaris, also known as psoriasis, is a non-contagious chronic and relapsing occurring skin disease. In some cases, skin, nails, or even the joints may be affected.
Today it is believed that the predisposition for psoriasis is hereditary, though it can also be triggered by external factors. These triggers are often different for individuals and so is the severity and the size of the affected areas.
Possible triggers include:
- Alcohol consumption
- Physical stress
- Mental stress
- Poor diet
- Environmental factors
- Irritation of the skin
What causes psoriasis?
Sufferers normally have an impaired immune system, which can sometimes be the cause for its sensitivity, tendency to inflame and vulnerability to allergens.
There are still many open questions about acute episodes of psoriasis. Today it is assumed that a defect in the lipometabolism causes a deficiency of lipids. Due to this deficiency of lipids, ceramides in the epidermal stratum corneum (horny layer) are produced incorrectly. This causes the natural barrier function of the skin to become disrupted which leads to transepidermal water loss that causes the skin to dry out severely. The dry skin then becomes flaky, itchy and irritated.