PROBLEM TO BE SOLVED: To grasp variation in a urine volume of a measurement target on the basis of urine volume information in urination.SOLUTION: A urine volume measurement apparatus comprises: an arithmetic part (22) which calculates a urination volume in every unit time on the basis of a urination volume measured in a urination time from the start to the finish of urination of a measurement target； and an information processing part (23) for outputting to an output part urination information expressing the urination volume in every unit time calculated by the arithmetic part.SELECTED DRAWING: Figure 5【課題】排尿時の尿量情報から、測定対象の尿量の変化を把握する。【解決手段】尿量測定機器は、測定対象の排尿の開始から終了までの排尿時間に測定された排尿量に基づき、単位時間毎の排尿量を算出する演算部(２２)と、演算部により算出された単位時間毎の排尿量を表す排尿情報を、出力部に出力させるための情報処理部（２３）と、を備える。【選択図】図５
