The blood vessel abnormality detection device (1) is disposed in the vicinity of a pair of electrocardiogram electrodes (11, 12) for detecting an electrocardiogram signal and one of the electrocardiogram electrodes (11), and receives a first photoelectric pulse wave signal. A first photoelectric pulse wave sensor (21) to detect, a second photoelectric pulse wave sensor (22) which is disposed in the vicinity of the other electrocardiogram electrode (12) and detects a second photoelectric pulse wave signal； Peak portions (316, 326) for detecting the respective peaks of the electrocardiogram signal, the first photoelectric pulse wave signal, and the second photoelectric pulse wave signal, and the peak of the electrocardiogram signal and the first photoelectric pulse wave signal The first pulse wave propagation time is obtained from the time difference from the peak of the pulse wave, and the pulse wave propagation time measuring unit for obtaining the second pulse wave propagation time from the time difference between the peak of the electrocardiogram signal and the second photoelectric pulse wave signal ( 330) and the time difference between the first pulse wave propagation time and the second pulse wave propagation time. Comprising detection unit for the (40).血管異常検知装置（１）は、心電信号を検出する一対の心電電極（１１，１２）と、一方の心電電極（１１）の近傍に配設され、第１の光電脈波信号を検出する第１光電脈波センサ（２１）と、他方の心電電極（１２）の近傍に配設され、第２の光電脈波信号を検出する第２光電脈波センサ（２２）と、検出された心電信号、第１の光電脈波信号、及び第２の光電脈波信号それぞれのピークを検出するピーク部（３１６，３２６）と、心電信号のピークと第１の光電脈波信号のピークとの時間差から第１脈波伝播時間を求めるとともに、心電信号のピークと第２の光電脈波信号のピークとの時間差から第２脈波伝播時間を求める脈波伝播時間計測部（３３０）と、第１脈波伝播時間と第２脈波伝播時間との時間差に基づいて、血管の異常を検知する検知部（４０）とを備える。
