What happens if flat feet is not treated?

A low or fallen arch can change how the sole meets the ground. The ankle may roll inward, and muscles and tendons can work harder during walking, standing, running, or stair climbing. Some people have flexible flat feet without symptoms and need no treatment. Others develop arch pain, soreness around the ankle, or tired feet after activity. The changed alignment can also contribute to irritation in the shin, knee, or hip, including conditions such as plantar fasciitis, shin splints, or patellofemoral pain syndrome. Symptoms may become more noticeable after a change in activity, footwear, body weight, or an injury.

Arrange an assessment if pain, stiffness, repeated ankle strain, or reduced walking tolerance is affecting daily life. A clinician may examine your walking pattern, arch flexibility, joint movement, and footwear. Management can include activity adjustment, supportive shoes, targeted exercise therapy, or physiotherapy to improve strength and control. Custom orthotics may be considered when support could reduce load on painful areas; they are not needed for every person with a low arch. Progress is usually guided by symptoms and function rather than the shape of the foot alone.

Seek prompt medical advice for sudden severe foot pain, marked swelling, inability to bear weight, a new visible change in foot shape, or numbness and weakness. Book a routine appointment when pain keeps returning, appears on one side only, follows an injury, or limits work, sport, or ordinary walking. These features may need a different explanation from longstanding flexible flat feet.

Ask whether your arches are flexible or rigid, whether your symptoms fit flat feet or another problem, and which activities or shoes are aggravating the load. You can also ask how long to try an exercise plan, whether orthotics are appropriate, and what change should prompt reassessment.