Flat Feet is a problem by birth but fallen arches develop in adulthood. Fallen arches often eventually result in flat feet. Many people may also have to face this condition due to a variety of injuries such as dislocating the bones in their feet and/or ripping or tearing of the tendons that can again lead to fallen arches.
Our foot is arched due to a network or series of tendons and ligaments that connect our leg muscles to our foot. This creates the foot's arch and when these tendons get injured or get loose due to any reason, the arch begins to fall. The symptoms of fallen arches worsen with age.