Psoriasis is a chronic autoimmune condition that causes skin cells to multiply too quickly, leading to red, scaly patches that can itch, crack, or feel sore. It most commonly affects the scalp, elbows, knees, and lower back, though it can appear anywhere on the body. Flare-ups may be triggered by stress, infections, cold weather, or certain medications. While psoriasis isn’t contagious, it can significantly impact quality of life and self-esteem. Treatments aim to manage symptoms and include topical creams, light therapy, and medications that calm the immune system. With proper care, many people successfully reduce flare-ups and discomfort.