Flat foot is often dismissed as a minor foot shape variation. Many people live with it for years without realizing that untreated flat foot can silently affect the knees, hips, and even the spine. If you experience frequent leg fatigue, knee pain, or unexplained back pain, your feet may be the starting point. Understanding flat foot early—and managing it with physiotherapy—can prevent long-term joint damage and chronic pain. 👉 What Is Flat Foot? Flat foot, medically known as