How much do you know about psoriasis? Can you recognize the signs and triggers? The disease can affect people of all races, at varying rates. According to the National Psoriasis Foundation, about 1.3 percent of African-Americans have psoriasis, compared to 2.5 percent of Caucasians.
Psoriasis is an autoimmune disease that causes cells to accumulate rapidly on the skin, causing red, scaly patches. It can appear in any area of the body, although it is most common on the outside of the elbows, knees or scalp. In some cases, the rash can burn and itch. According to the Mayo Clinic, signs can vary and include dry, cracked skin, scaling spots, and swollen joints.
It’s unclear exactly what causes psoriasis, however scientists believe genetics play a huge role. The Mayo Clinic lists a number of things that can trigger psoriasis, such as:
- Infections, such as strep throat or skin infections
- Injury to the skin, such as a cut or scrape, bug bite, or a severe sunburn
- Stress
- Cold weather
- Smoking
- Heavy alcohol consumption
- Certain medications — including lithium, which is prescribed for bipolar disorder; high blood pressure medications such as beta blockers; antimalarial drugs; and iodides.
A dermatologist will usually diagnose the disease, which is associated with other serious health conditions, such as diabetes and heart disease.
Psoriasis can range from mild to severe, depending on how much it covers your body. Treatments depend on the severity of the disease and can include creams, shampoos, and/or light therapy.