1.Muscle (tendon) stretching Tension in the muscles associated with the lower leg (ankle) is often considered a common cause of flat feet, and many foot and ankle surgeons often consider releasing the tense muscles. Tension in the muscles leads to increased stress in the foot, causing the arch to collapse. Targeted stretching exercises can help reduce the adverse symptoms of flat feet, especially the effective stretching of the Achilles tendon is also a favorite stretching activity for runners, such as the yoga pose “downward dog” on the back of the calf stretching effect is very good. 2, arch function enhancement exercises The foot contains many muscle tissues or components, which means that many muscles originate at one end of the foot, extending to other parts of the body and ending at the other end. These muscles are called the intrinsic muscles of the foot and are usually attached to the area or location on the bottom of the foot. People with flat feet usually have some degree of intrinsic muscle deficiency, so exercises designed to strengthen the foot muscles that can help support the arch, simple exercises such as grasping things with the toes (picking up rocks or handkerchiefs with the toes), writing on the tips of the feet, and other actions are simple and effective. 3.Custom-made orthopedic insoles The orthopedic insoles for arch support lift the arch through external support, and the insoles ensure the function of the arch by adjusting the arch structure to a normal position, which will be better if they can be combined with custom-made orthopedic shoes to correct the overturned heel bone. The support of the arch structure reduces the tension and tension of the ligaments and muscles, which often makes the flatfoot patients feel more comfortable. 4, barefoot exercise This method is currently debated, whether it is effective need to vary from person to person. It also seems counterintuitive because we generally believe that flat feet need arch support. Doctors who support this view believe that when a patient walks or moves barefoot, the muscles of the foot become more active and therefore stronger, theoretically making the foot muscles stronger and possibly improving the stability of the foot as a result. However, some doctors believe that prolonged barefoot walking will aggravate the degree of arch collapse in clubfoot and flat feet. 5. Surgery Surgery is usually the last option when other measures have been used and there is still no improvement in the symptoms of foot pain. Surgery for flatfoot can be relatively simple or very complex, depending on the age of the patient, the severity of the flatfoot, and the intensity of the associated symptoms. Each person’s flatfoot status may be different, and most importantly, flat feet cannot simply be “cut and pieced” together. For example, a common type of surgery may involve implanting a brace in the back of the foot to support the skeletal structure. There is also another common surgical approach that involves cutting the bones or fusing the joints to help transfer the tendons to realign the arch structure. Although the above methods are often difficult to heal flat feet, we can still take these steps to make the flat foot function better and help maximize the biomechanics of the lower extremity. We should also be aware that treatment is necessary if the flat foot is associated with pain in the foot or leg, causing difficulty walking or if the arch of one foot is flatter than the other. In addition, certain congenital foot defect factors that lead to severely flattened arches need to be treated promptly.