Objective. – This work aims to contribute to the improvement of the management of waste arising from care activities involving infectious risks, which is currently a real health and environmental concern, especially in diffuse medium. Workers and methods. – This is a descriptive, exploratory and cross-sectional study was carried during 2011 in the Gharb region in Morocco. A census of medical analysis laboratories in the city of Kenitra with an anonymised questionnaire. Other methods have been used such as interviews with those responsible for the medical laboratories. Results. – The participation rate in the survey was 83.33%. Almost 80% of the laboratories sorting the sharp waste and soft infectious waste, while only 50% use special containers for this waste. Only 25% meet the standard for disposal and collection time. Approximately 70% of the sharp waste discharged separately, while the soft infectious waste is mixed with household waste to 70% of laboratories. Almost 62.5% of medical laboratories eliminate the infectious waste by a single contribution to the recycling center which generates mismanagement disposal of infectious waste. While 37.5% eliminates this waste through a collection company and 66.7% of them have an agreement with a company to collect and only 33.3% were satisfied with the management of these companies. Conclusion. – The management system of solid and liquid infectious and highly infectious waste is a major concern for health staff and people. This study supported the need reminders of information for health professionals on the management rules through continuing education, personal sensitization and the implementation of an adequate organizational plan based on the use of well-adapted approaches, regular assessment and coordination between those responsible.