Fourty two cases of the nasal bone fractures who had visited within 10 days after nasal injuries and had followed up for 3 months during a period of one year from January, 1988 to December, 1988 were analysed. The results were as follows ; 1) The causes were sports(52.4%), assault(21.4%), fall(11.9%), instrument(9.5%), autoaccident(4.8%) in order of frequency. 2) The symptoms and signs were tenderness of nasal dorsum(95.2%), nasal deformity(92.9%), epistaxis(88.1%), swelling of nasal dorsum(83.3%), nasal obstruction(78.6%), X-ray evidence of fracture(69.0%), ecchymosis(40.5%), crepitus of nasal bone(11.9%) in order of frequency. 3) The most common direction of forces was lateral direction and the types of nasal bone fractures were as follows ; (1) Lateral displaced fracture, 28 cases(66.8%), (2) Frontal depressed fracture, 7 cases(16.7%), (3) Linear fracture, 3 cases(7.1%), (4) Lateral displaced & frontal depressed fracture, 2 cases(4.8%), (5) Simple depressed fracture, 1 case(2.4%), (6) Upward displaced fracture, 1 case(2.4%). 4) The injuries of the nasal septum were observed in 32 cases(76.2%) and septal hematoma, septal abscess in 3 cases(7.1%). 5) In terms of treatment, 30 cases(71.4%) were treated with closed bony reduction and closed septal reduction, 7 cases(16.7%) were treated with only closed bony reduction, 2 cases(5.8%) were treated with closed bony reduction and septoplasty, 3 cases(7.1%) were treated conservatively. 6) After 3 months, 6 cases(16.2%) due to nasal deformity and 7 cases(18.9%) due to nasal obstruction of 37 cases who had treated with closed reduction consider further surgery.