Once a bunion has developed, the force line of the bunion has changed, and the force line is obviously turned outward. During running, the forceful grip of the toes will cause the deflection to develop more and more to the outside. Therefore, it is easy to aggravate the bunion when running. To correct the bunion at this time, it is necessary to minimize the strenuous movement of the lower limbs, and orthopedic devices can be worn to reduce the onset of the disease and to avoid recurrent attacks of medial bursitis. If strict conservative treatment does not work, surgery should eventually be considered.