Criticism has centered on the lack of explanation in medical malpractice suits. The purpose of this paper is to find what practitioners should do besides givingmuch information. From 55 judgments of district courts dealt with malpractice in Japan, we extracted and categorized patient's complaints about informed consentand practitioner-patient relationship. In conclusion, practitioner's attitude need to be improved on such three points: not to underestimate patient's complaints of pain or anxiety, to respond patient's questions enough, and not to treat patients arrogantly.