Psoriasis

What is Psoriasis?

Psoriasis is an immune-mediated condition in which the body's T cells mistakenly attack healthy skin cells, triggering an overproduction of new skin cells. While normal skin cells grow and shed in about a month, psoriatic skin cells complete this cycle in just 3-4 days, leading to a buildup of thick, scaly patches. There are several types, with plaque psoriasis being the most common, affecting about 80-90% of patients. Psoriasis is not contagious but is associated with several comorbidities including psoriatic arthritis, cardiovascular disease, diabetes, and depression. In the UAE, the hot, dry climate and heavy air conditioning can trigger flare-ups, while natural sunlight and the Dead Sea minerals available in some UAE spa treatments can provide relief.

Symptoms

• ●Red patches of skin covered with thick, silvery scales
• ●Dry, cracked skin that may bleed
• ●Itching, burning, or soreness
• ●Thickened, pitted, or ridged nails
• ●Stiff and swollen joints (psoriatic arthritis)
• ●Small scaling spots, commonly seen in children

What Causes Psoriasis?

Psoriasis is caused by an overactive immune system that accelerates skin cell turnover. The exact trigger is unclear, but genetics play a strong role — about one-third of patients have a family history. Environmental triggers include infections (particularly streptococcal throat infections), skin injuries, stress, cold and dry weather, smoking, and certain medications like lithium and beta-blockers.

Risk Factors

• ⚠Family history of psoriasis
• ⚠Smoking
• ⚠Obesity
• ⚠High stress levels
• ⚠Frequent skin infections or injuries
• ⚠Certain medications such as lithium or beta-blockers

How to Prevent Psoriasis

While psoriasis cannot be prevented, flare-ups can be minimized by managing stress, keeping skin moisturized, avoiding smoking and excessive alcohol, maintaining a healthy weight, and protecting skin from injury. Regular, moderate sun exposure may also help reduce symptoms.

When to Get Tested

Get tested if you develop persistent red, scaly patches on your skin, or if you have joint pain along with skin symptoms that may indicate psoriatic arthritis.

References & Sources

• [1]
  Mayo Clinic — PsoriasisAccessed: 2026-02-24
• [2]
  NHS — PsoriasisAccessed: 2026-02-24
• [3]
  WHO — Global Report on PsoriasisAccessed: 2026-02-24