For the first time in Japan's medical history, organs from a person under 15 were transplanted to other people on April 13-14. Such transplants became possible after the revised Organ Transplant Law went into force in July 2010.

Under the original law, which went into effect in 1997, only people aged 15 or older who have expressed their desire to donate organs in writing could become donors on the condition that their families consent. The revised law allows harvesting of organs from anyone at any age if the person has not explicitly expressed his or her refusal to be a donor and if his or her family consents.

If a donor is younger than 18, it must be confirmed that he or she has not been physically abused. The April 13-14 transplants could lead to more organ transplants from children to children.