PROBLEM TO BE SOLVED: To decrease incontinence.SOLUTION: A management server 30 comprises an estimation unit 32 which estimates the urine volume produced based on the water volume taken in and the water intake time, and then compares the urine volume in the bladder estimated based on the produced urine volume with the capacity of the bladder to estimate the time at which a capacity level to be warned about is reached. The management server 30 also includes a notification unit 33 which issues a warning notification according to the result of estimation made by the estimation unit 32.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】失禁を減少する。【解決手段】管理サーバ30は、摂取した水分の量、及び水分の摂取時間に基づいて、生成される尿量を推定すると共に、生成される尿量に基づいて推定した膀胱に含まれる尿量と、膀胱の容量と、を比較して警告すべき容量値となる時間を推定する推定部32を含む。また、管理サーバ30は、前記推定部32が推定した結果に応じて警告を通知する通知部33を含む。【選択図】図1