The Proximal Interphalangeal (PIP) joint is a hinge joint located in the fingers and toes. It connects the first and second phalanges, allowing for bending and straightening movements. Each hand has four PIP joints, while each foot has five, facilitating various functions like gripping and walking. In the hand, the PIP joint plays a crucial role in hand dexterity and function. Injuries or conditions affecting the PIP joint, such as arthritis or fractures, can significantly impact a person's ability to perform daily tasks. Proper care and rehabilitation are essential for recovery and maintaining joint health.