PROBLEM TO BE SOLVED: To provide a device capable of automatically recording the body weight of a person who has experienced onset of cardiac failure or kidney failure, and notifying of warning when a possibility of failure recurrence increases.SOLUTION: A warning device for onset of cardiac failure or kidney failure includes: body weight receiving means for receiving the body weight periodically measured body weight recording means for recording the body weight received by the body weight data receiving means onset prediction body weight storage means for storing onset prediction body weight which is the body weight by which the onset of cardiac failure or kidney failure is predicted onset possibility determination means for determining that the state is a warning state in which the possibility of the onset of cardiac failure or kidney failure is high when the body weight received by the body weight receiving means is equal to or more than the onset prediction body weight, and the body weight stored in the body weight storage means continuously increases for the latest predetermined period and notification means for notifying when the onset possibility determination means determines that the state is a warning state.COPYRIGHT: (C)2015,JPO&INPIT【課題】心不全や腎不全の発症経験者の体重を自動的に記録し、病気再発の可能性が高くなったときに警告を通知できる装置を提供する。【解決手段】心不全又は腎不全発症警告装置として、定期的に測定される体重を受け付ける体重受付手段と、前記体重データ受付手段が受け付けた体重を記録する体重記録手段と、心不全又は腎不全が発症すると予測される体重である発症予測体重を記憶する発症予測体重記憶手段と、前記体重受付手段が受け付けた体重が前記発症予測体重以上となり、かつ、前記体重記憶手段に記憶される体重が直近の所定期間連続して増加している場合に、心不全又は腎不全が発症する可能性が高い状態である警告状態であると判断する発症可能性判定手段と発症可能性判定手段が警告状態であると判断した場合に、通知を行なう通知手段とより構成する。【選択図】 図2