A bulge on the dorsum of the foot is considered to be caused by localized fasciitis, which is associated with repeated exertion and prolonged chronic strain; or the patient may have bone degeneration or osteophytes, which may also lead to localized small joint dysfunction. Patients may experience significant pain, localized elevation, and mild tenderness; ultrasonography may reveal an intact swelling or even an intracapsular fluid; x-ray may reveal bone degeneration. Mild cases can be relieved by physiotherapy with local heat application or massage. In addition, local soft tissue contusions and cysts in the tendon or tendon sheath following trauma may be treated surgically, if necessary, by removing the lesion under local anesthesia. After surgery, care should be taken to elevate the limb to avoid secondary swelling of the lower extremity.