A medical connector, comprising: a body (59) of the connector that a cavity (60) passes through, the body (59) of the connector having a first end (61) surrounding the cavity (60) and a second end (62 ) surrounding the cavity (60)； the first end (61) defining an insertion axis of an external tubular element (33) in the cavity (60)； the body (59) of the connector having a lateral surface having a recess (75)； a coupling element (63) having a handling portion (64), housed at least partially in the recess (75), and a coupling portion (65) configured for engagement with the external tubular element (33)； the coupling element (63) being mobile, with the possibility of assuming at least one engaged position, in which it is coupled with the external tubular element (33), and at least one inserted position, in which the tubular element can be inserted external (33) in the cavity (60)； and at least one signal (67) associated with an external surface of the handling portion (64), characterized in that the handling portion (64) protrudes from the recess (75) in the engaged position, and returns inside the recess ( 75) in the inserted position； and the signal (67) is shaped and arranged so that it exits the recess (75) in the engaged position, so that it is visible to an external observer, and so that it returns to the recess (75) in the inserted position, so that It is hidden from view.Un conector médico, que comprende: un cuerpo (59) del conector al que atraviesa una cavidad (60), teniendo el cuerpo (59) del conector un primer extremo (61) que rodea la cavidad (60) y un segundo extremo (62) que rodea la cavidad (60)； definiendo el primer extremo (61) un eje de inserción de un elemento tubular externo (33) en la cavidad (60)； teniendo el cuerpo (59) del conector una superficie lateral que presenta un rebaje (75)； un elemento (63) de enganche que tiene una porción (64) de manejo, alojada al menos parcialmente en el rebaje (75), y una porción (65) de enganche configurada para su
