Foreign bodies in the foot are usually diagnosed by medical history and symptoms. We report a case of a needle in the foot that was asymptomatic for a long time. The patient was a 14-year-old male. A foreign body was accidentally found on the sole of the foot when taking an X-ray of the foot. The X-ray revealed a sewing needle with a length of 5 cm, which was removed by surgery. The foreign body was found to have entered the subplantar aponeurosis muscles. In this case, the foreign body on the sole of the foot may have moved under the tendon sheath by walking.
