A prosthetic leg is an artificial device designed to replace a leg that has been lost due to injury, illness, or congenital conditions. These devices help individuals regain mobility and improve their quality of life. Prosthetic legs can be customized to fit the user's needs and can include features like adjustable joints and specialized materials for comfort and durability. Modern prosthetic legs often use advanced technology, such as microprocessors and sensors, to mimic natural movement. They can be designed for various activities, from walking to running, allowing users to engage in everyday tasks and sports. Proper fitting and rehabilitation are essential for effective use.