What is body surface area?

Body surface area (BSA) is a measure of the total surface area of the human body, often used in medical settings to calculate drug dosages and assess physiological parameters. It is typically expressed in square meters and can be estimated using various formulas, such as the Dubois formula. BSA provides a more accurate assessment than body weight alone, particularly for individuals with significant muscle or fat variations. It plays a crucial role in areas like oncology, pediatrics, and pharmacology.