A tube for medical instruments according to the present invention includes: a tubular member that is made of resin, a linear member that includes a metal wire member and a resin coating film that covers the metal wire member and that surrounds the tubular member outside the tubular member, and a polymeric elastomer layer that is laminated on an outer circumferential surface of the tubular member such that the polymeric elastomer layer fills in at least a part of an outer peripheral portion of the linear member in a circumferential direction over a longitudinal direction of the linear member.
