A male connector and a medical device according to the present invention, wherein the male connector comprises a housing, a flow tube member, a first valve member and a second valve member, and a first elastic body and a second elastic body. The first valve member is movable with respect to the flow tube member by elastically deforming the first elastic body such that a distal end of the flow tube member can penetrate and be removed from the first valve member. The flow tube member, in a state where the distal end of the flow tube member penetrates the first valve member, is movable with respect to the second valve member by elastically deforming the second elastic body such that a proximal end of the flow tube member can penetrate and be removed from the second valve member.