Abstract
The recent 10 years are regarded as a turbulent decade at medical malpractice cases, since two cases happened. One of the two cases was the incident of giving patients antiseptic solutions via an intravenous drip at Tokyo Metropolitan Hiroo Hospital, and the other was the incident of mixing up patients at Yokohama City University Hospital both in 1999. Lots of movement occurred in the field of medical cases. In this paper, I would like to view such medical malpractice cases and suggest the understanding of the uncertainty of medical treatment should be the keyword to understand the relation between doctors and patients.