Ruptured Abdominal Aortic Aneurysms (AAA) cause a large number of deaths annually. Ruptures occur even in people who are already diagnosed with AAA and are being monitored. The reason is that the interval between tests is too long because of the need to visit a pathological facility with imaging equipment. It is preferable to estimate the progress of AAA frequently, once detected, in a non-invasive manner, preferably at the subjects home, without the need for the subject to visit a pathological facility. A device is disclosed for detecting a state of a vascular pathology of a subject, comprising a sensor signal unit (103) for providing a signal representative of a blood volume in a body part of a subject, a comparator (107) for comparing the sensor signal with a reference signal, and a user interface (109) for conveying a result based on the comparison to a user of the device.