Life expectancy of the childhood-onset chronic diseases has become dramatically improved since 1970s in Japan. As a result, adults with special health care needs or “patients in transition” have been increasing in number and their transition care has been of great importance. The Japan Pediatric Society published a recommendation for transition care in 2014 and has made continuous efforts to achieve better transition care in each medical field since then. As for allergic disorders pediatric and adult allergologists can share the same understanding of allergy and smooth transition may be realized on this basis.

 What are necessary to achieve adequate transition are : (1) support to attain health literacy, (2) creation and utilization of support tools, (3) acceleration of medical cooperation, (4) accumulation of experiences with “patients in transition” in adult medical side, and (5) drawing up of clinical guidelines for long-time management of the disorders. It should also be stressed that the goal of transition is not merely a baton pass but better life-span management.