Flat feet are known as flat feet. The main cause of pain when walking with flat feet is low arches or even the loss of arches, which causes the plantar fascia to be strained over a long period of time, thus causing pain. Flat feet are characterized by low arches or the disappearance of arches, low arches or the disappearance of arches, the plantar fascia will be vigorously pulled, long-term walking caused by the plantar fascia for a long time, will cause tension in the plantar fascia and cause pain, and in severe cases, will cause aseptic inflammation or even traction injuries. So for flat feet, it is recommended to avoid walking for a long time, you can use corrective insoles under the guidance of the doctor to ease the pain, when the pain is serious, you can take ibuprofen and other drugs to improve the symptoms, the drug should be used in accordance with the doctor’s instructions, the emergence of adverse reactions recommended to consult the doctor, drug allergy is prohibited.