The Ethics Committee of the Japanese Society of Laboratory Medicine published "Opinions of Japanese Society of Laboratory Medicine about utilization of specimens after laboratory examinations for laboratory work, education and clinical studies" in 2002, and amended it in 2008. The Ethics Committee, Committee for Conflict of Interest, Compliance Committee, and Editorial Committee for Rinsho Byori, the official journal of the Japanese Society of Laboratory Medicine, cooperate to solve ethical problems in laboratory medicine. The management of ethical problems in the Japanese Society of Laboratory Medicine is discussed.