What is the condition characterized by red patches covered with silver-white scales?

The condition characterized by red patches covered with silver-white scales is psoriasis. Psoriasis is a chronic autoimmune disease that speeds up the growth cycle of skin cells, leading to the formation of these distinctive scales and patches. The immune system is involved in this condition, affecting the skin's appearance and function.

The appearance of these scales is due to the rapid proliferation of skin cells that accumulate on the surface, rather than sloughing off at a normal rate. Additionally, psoriasis may involve itchiness and discomfort alongside the scaly patches, which are commonly found on areas like the elbows, knees, and scalp.

Other conditions, such as eczema and dermatitis, involve inflammation and can also cause redness and irritation but do not typically present with the silvery scales characteristic of psoriasis. Acne primarily affects hair follicles and sebaceous glands, leading to pimples and comedones rather than scaly patches. Understanding these distinctions can help in identifying and appropriately managing these skin conditions.