Background & Objectives: The hearing organ has a special role in establishing communication among people and their education. Hearing loss causes disorders in communication between human and environment. In growing ages, hearing loss may lead to general educational failure . T his study was conducted in order to determine the relationship between hearing loss and educational failurs.

  Methods: In this case control study 110 failed students in 5^th grade elementary school (case) and 110 other ones (control) were selected by systematic random sampling. Both groups underwent the audiometric tests. The Data were analyzed by EPI 2000 software.

  Results: The results of this study showed that 9.1% of cases and 0.9% of controls needed sonic energy more than 30db in left ear to hear. The difference was significant (P<0.05) whereas there was no significant relationship between hearing loss and educational failure in rigth and left ear in both groups when the sonic energy used is more than 20db.

  Conclusion: The failed students are strongly recommended to be annually examined and evaluted by a specialist and if necessary be treated.