“…These injuries can be happened in industrial accidents, car accidents, fall accidents or criminal activities [4,5]. From literatures, some of these injuries occurred in psychiatric patients attempting suicide and the causative objects described in the clinical reports include nail, pencil, ball-pen, toothbrush, harpoon, spectacle arm, screw, ice pick, chopsticks, metallic wires, sewing needles [1][2][3][4][6][7][8][9]. To date, there are only 3 English literatures reporting self-inflicted penetrating brain injury with a ball-pen; in all of these reports, the ballpens got into the brain either passing through the orbit or the nasal cavity and paranasal sinus which are thin and delicate bones [1][2][3].…”