What effect does psoriasis have on skin turnover?

Psoriasis is characterized by an accelerated skin cell turnover rate. In normal skin, the process of skin cell generation, maturation, and shedding typically takes about 28 to 30 days. However, in individuals with psoriasis, this cycle is significantly sped up, often taking only 3 to 7 days. This rapid turnover leads to the accumulation of immature skin cells on the surface, which results in the thick, scaly patches that are characteristic of the condition.

The increased turnover is due to an overactive immune response that triggers inflammatory processes, causing skin cells to proliferate more quickly than they can mature and shed. This excessive buildup not only results in the visible symptoms of psoriasis but can also contribute to discomfort and itching associated with the condition. Understanding this accelerated turnover is crucial for recognizing how psoriasis impacts skin health and for guiding appropriate treatment strategies.