Introduction: Blood born infectious diseases (HBV, HCV and HIV) are common ‎occupational hazards which threaten medical workers‏.‏‎ Sharps and needle stick injuries are ‎common problems for nurses at work places but sometimes these injuries remain unreported.‎

 Objective: The main objective of this research is to identify the factors related to report the ‎needle stick and sharps injuries among nursing staffs.‎

Methods: In this cross-sectional-descriptive and analytical study,‎‏ 500‏‎ nursing staffs of the ‎educational and therapeutic centers in Rasht were selected by stratified random sampling ‎method. Data were collected by completing the questionnaire.‎‏ ‏In order to analyze the data we ‎utilized Chi-square, Fisher exact test, Mann Whitney, multiple logistic regression statistical ‎tests.‎‏ ‏We analyzed relationship between independent, dependent and background variables, ‎and related factors on reporting were determined.‎

Results: Findings indicated that from ‎‏386‏‎ nurses (‎‏77.2%‏‎) who experienced the injuries, only‏ ‏‏209‏‎ (‎‏54.1%‏‎) of them reported the accident. Reporting rate was increased ‎‏4.37‏‎ times when ‎recommended by others, awareness of the existence of reporting system (‎‏1.59‏‎ times) and work ‎load (‎‏1.54‏‎ times). Existence of a specific person for reporting decreased the chances of ‎reporting by ‎‏2.3‏‎ times.

 ‎ Conclusion: Not-reporting the sharps injuries are an important event for health care workers. ‎Increasing awareness among nurses about risk of exposure and transmission of blood born ‎viral diseases and improvement of infection control services for post exposure follow up can ‎reduce non reporting rate.‎