Stress is known to contribute to psoriasis, and new research adds to understanding of the complex relationship. According to new data (Dermatol Ther. 2020;e13864), patients with psoriasis have significantly higher levels of perceived stress, compared to healthy controls.

The study involved 195 patients with psoriasis and 114 healthy controls assessed by a single dermatologist. Psoriasis severity was assessed with the body surface area (BSA) and the Physician Global Assessment (PGA). The Questionnaires of Dermatology Life Quality Index (DLQI), the Perceived Stress Scale (PSS), the Beck Depression Inventory and the Beck Anxiety Inventory were also used. PSS scores were significantly higher in the psoriasis group than in the control group (25.14 ± 8.67 vs. 23.0 ± 6.93, p < 0.001, respectively).