Asian Journal of Biological Sciences1996-3351xxxx-xxxxScience International10.3923/ajbs.2010.128.133NikakhlaghS. RahimF. SakiG. KhosraviA. RekabiH. SakiN. 3201033The aim of this retrospective study was investigating the anatomical position and causes of deep neck infections as well as detection of the relation of these variables with age and gender of the patients. In this study, patient with primary deep neck infections referred to ear, nose and throat ward during 1998 to 2009, were studied. After definite diagnosis of infection in head and neck spaces, the exact infection-causing agent and its complications were reviewed. Furthermore, age and sex of patients, co-existing symptoms, bacterial culture results causing the infection, disease background, presence or absence of addiction reviewed and information obtained in the questionnaire were recorded. For comparison Chi-square test was used. The most common cause of deep neck infection, was dental infection in 130 patients [(49%); 78, male; 52, female] followed by tonsillar infection in 44 patients (16.6%). The deep neck infection space types: simultaneous spaces includes sub-mandibular, sub-mental, sub-lingual (Ludwig's angina) in 59 patients (45.4%), then sub-mandibular space in 54 patients (41.5 %) and para-pharyngeal space in 32 patients (24.6%) were more common. Bacterial culture were done only in 50 patients, of which, 28 cases of bacterial growth occurred. The most common organism was streptococcus viridians in 18 patients. The deep neck infections are dangerous and life-threatening that often occurs due to dental infections. Therefore, it seems that promote public knowledge about oral health, to increase the need of dental and treatment centers, timely cure and manage the infections, which play an important role in reducing the deep neck infections.]]>Baqain, Z.H., L. Newman and N. Hyde,2004118561565Rizzo, P.B., C. Marchiori, F. Montolli, A. Vaglia and M.C. Da Mosto,200668259265Bottin, R., G. Marioni, R. Rinaldi, M. Boninsegna, L. Salvadori and A. Staffieri,2003260576579Eftekharian, A., N.A. Roozbahany, R. Vaezeafshar and N. Narimani,2009266273277Huang, T.T., T.C. Liu, P.R. Chen, F.Y. Tseng, T.H. Yeh and Y.S. Chen,200426854860Larawin, V., J. Naipao and S.P. Dubey,2006135889893Lee, J.K., H.D. Kim and S.C. Lim,2007485562Marioni, G., R. Rinaldi, C. Staffieri, R.M. Ragona and G. Saia et al.,2008128201206Meher, R., A. Jain, A. Sabharwal, B. Gupta, I. Singh and A.K. Agarwal,2005119299302Myers, E.M., L.S.Jr. Kirkland and R. Mickey,198898213218Nikaghlagh, S. and N. Saki,2003381823Ovassapian, A., M. Tuncbilek, E.K. Weitzel and C.W. Joshi,2005100585589Parhiscar, A. and G. El-Har,200111010511054Ridder, G.J., K.T. Ihling, A. Sander and C.C. Boedeker,2005133709714Saki, N., S. Nikakhlagh and M. Kazemi,200811314317Saki, N., S. Nikakhlagh and M. Tahmasbi,20085199204Saki, N., S. Nikakhlagh, F. Rahim and H. Abshirini,20096322328Saki, N., S. Nikakhlagh, F. Safai and M. Peyvasteh,200723854856Schuster, G.S.,20092009pp: 332-337pp: 332-337Suehara, A.B., A.J. Goncalves, F.A. Alcadipani, N.K. Kavabata and M.B. Menezes,200874253259Wang, L.F., W.R. Kuo, S.M. Tsai and K.J. Hucng,200324111117Wang, L.F., W.R. Kuo, C.S. Lin, K.W. Lee and K.J. Huang,200218386392Yen, C.W., C.Y. Lin, L.Y. Tsao, S.C. Yang, H.N. Chen and M.Y. Chang,2007481519Zheng, Y., D.H. Wen and X.M. Qiao,2005406063