The syndrome is congenital, meaning that the individual develops the bone or cartilage at birth (D'amico J., 2016, September). Pain may arise due to trauma to the ankle or foot. It is common for pain and other symptoms to appear in adolescence. Sometimes, however, the symptoms do not occur until adulthood. A patient with accessory navicular syndrome will have a visible bony prominence on the midfoot that is located on the navicular bone. The bony prominence may have redness and swelling that is associated with it, mainly due to friction from footwear. They may complain of vague pain or throbbing in the midfoot and arch that usually occurs during or after periods of activity. The patient may complain of mid food or arch pain, which may be apparent with or without trauma, pes planus, an inflamed bursa, complain of difficulty with footwear, have a tenderness over the prominence, and pain over the posterior tibialis tendon due to tendinitis and tightness of the tendoachillis in long standing cases (D'amico J., 2016,…