A device (10) for monitoring regular movement of the body (20) of a human subject, said device (10) comprising an electronic circuit including at least one alarm; means (14) for attaching releasably device (10) to the body (18) of the subject in the crotch region (18); and at least one first proximity sensor (22) is a contactless proximity sensor, wherein said first proximity sensor is configured and directed to monitor a distance between the device (10) and stomach (20) subject in a region of the first sensor (23) when the device (10) is attached to the subject's body in the crotch portion (18); wherein said device (10) includes at least one second proximity sensor (24) is a contactless proximity sensor and configured and directed to monitor a distance between the device (10) and stomach (20) the subject in a region of the second sensor (25) when the device (10) is attached to the subject's body in the crotch portion (18); being configured said attachment means (14) and said proximity sensors first and second (22, 24) such that the area of the second sensor (25) is disposed remote from the connecting means (14) area first sensor (23); and said circuit being configured to activate the alarm in the event that a pattern by which varies the distance measured by at least one of the first proximity sensor (22) and the second proximity sensor (24) changes by a predetermined amount .Un dispositivo (10) para monitorizar el movimiento regular del cuerpo (20) de un sujeto humano, comprendiendo dicho dispositivo (10) un circuito electrónico que incluye al menos una alarma; medios de unión (14) para unir de manera liberable el dispositivo (10) al cuerpo (18) del sujeto en la zona de la ingle (18); y al menos un primer sensor de proximidad (22) que es un sensor de proximidad sin contacto, en el que dicho primer sensor de proximidad se configura y se dirige para monitorizar una distancia entre el dispositivo (10) y el estómago (20) del sujeto en una zona del primer sensor (23),