Itchiness, also known as pruritus, is an uncomfortable sensation that causes the desire to scratch the skin. It can result from various factors, including dry skin, allergies, insect bites, or skin conditions like eczema and psoriasis. The sensation occurs when nerve endings in the skin are stimulated, sending signals to the brain. While often temporary, itchiness can become chronic and affect daily life. It can be relieved through moisturizers, antihistamines, or topical treatments. Identifying the underlying cause, such as exposure to irritants or allergens, is essential for effective management and prevention of further irritation.