Psoriasis affects 8 million Americans. It's an autoimmune condition that causes the skin cell cycle to speed up dramatically, producing thick, scaly patches. It increases the risk of psoriatic arthritis, heart disease, and depression.
When to See a Doctor
🩺 Routine checkupSee a dermatologist for new, persistent, or rapidly spreading skin changes. See a rheumatologist if you develop joint pain — psoriatic arthritis requires specific treatment. Seek urgent care for widespread erythrodermic or pustular psoriasis, which can be life-threatening.
Common Symptoms
6 symptomsRaised red or pink patches with silvery scales
The most recognizable sign of plaque psoriasis — well-defined patches of raised, inflamed skin covered with thick, silvery-white scales.
Skin itching, burning, or soreness
Psoriasis plaques can itch intensely or feel burning and painful — especially in skin folds or after exposure to triggers like stress or alcohol.
Dry, cracked skin that may bleed
Skin in psoriatic patches is fragile and prone to cracking, especially on the hands, feet, and elbows.
Nail changes (pitting, thickening, discoloration)
About 50% of people with psoriasis have nail involvement: pitting, nail bed separation, yellowing, or crumbling nails.
Scalp psoriasis
Scaly patches on the scalp — often extending to the forehead, behind the ears, or the back of the neck. May cause temporary hair loss.
Koebner phenomenon
New psoriatic lesions appearing at sites of skin injury — cuts, scrapes, sunburns, or surgical incisions. A characteristic feature of psoriasis.
Advanced Symptoms
1 symptomJoint pain and swelling (psoriatic arthritis)
Up to 30% of people with psoriasis develop psoriatic arthritis — inflammatory joint disease that can cause permanent damage without treatment.
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