Risk management is an important item for all pathology laboratories. One consideration is the laboratory quality system. The author reports the results from an analysis of incident reports of the risk management program laboratory service, King Chulalongkorn Memorial Hospital, from October 2000 to March 2001. This program is a part of the ISO 9002 quality system of the laboratory. All workers in the laboratory monitored the risks, accident and service/environment in the laboratory. During the study period, 14 incidents, 11 service/environment items and 3 accident items were reported. The venipuncture clinic is the place where most incidents occurred. The results from analysis were collected and used as baseline data for improvement of the laboratory process. The author recommends the incident report system for improvement of the quality of all laboratories.