Genetic Predisposition: People with a family history of psoriasis are at an increased risk of developing the condition.
Immune System Dysfunction: In psoriasis, the immune system mistakenly attacks healthy skin cells, leading to rapid skin cell growth and the characteristic symptoms.
Common Triggers
While not always predictable, certain factors can trigger psoriasis flare-ups:
Infections: Strep throat infections can trigger guttate psoriasis.
Stress: Emotional and physical stress can exacerbate psoriasis symptoms.
Injury to the Skin: Minor injuries, such as cuts, scrapes, or sunburn, can trigger psoriasis at the site of injury (the Koebner phenomenon).
Certain Medications: Some medications, such as beta-blockers and lithium, can worsen psoriasis symptoms.
Alcohol Consumption: Excessive alcohol consumption can trigger or worsen psoriasis flare-ups.
Smoking: Smoking is a significant risk factor for developing severe psoriasis and can increase the severity of existing symptoms.