More than 130 million people worldwide suffer from this disease.
Psoriasis is an autoimmune disease that causes red, scaly patches on the skin.
Skin cells in people with psoriasis grow at an abnormally fast rate.
The skin cells of the affected areas reproduce every 3 to 6 days instead of every 28 days (which is how the cells of a person without psoriasis do). This causes the accumulation of psoriasis lesions, which are characterized by red, thickened and scaly plaques on the skin.
2. How psoriasis is diagnosed.
There is no blood test or special tools to diagnose psoriasis.
The diagnosis is based mainly on the examination of the affected skin, and sometimes a biopsy can be taken and examined under a microscope. The skin of psoriasis looks thicker and inflamed compared to the skin with eczema.
3. It appears in both men and women.
4. It occurs in all racial groups.
But at variable rates: about 1.9% of African-Americans have psoriasis, compared to 3.6% of Caucasians.
5. It can appear at any age.
But usually for the first time between 15 and 35 years.
6.- Psoriasis is not contagious.
7. It usually affects the outside of the elbows, knees and scalp.
Although it can also appear in other areas of the body.
8. There are several types.
In plaques, in drops (guttata), inverse, erythrodermic, pustular and unguea
9. It may be associated with other diseases.
People suffering from psoriasis may have a higher prevalence of diabetes, psoriatic arthritis, cardiovascular risk and depression.
10. It has no cure.
But there are treatments that help control symptoms and make life easier for patients.