[Problem] There is provided a hemostatic device which can satisfactorily maintain strength of an inflatable portion, which does not need to be operated by a physician or a nurse, whose compressing force acting on a site where bleeding is to be stopped can be reduced with the lapse of time to such an extent that vascular occlusion can be prevented, and in which the inflatable portion and a band are interlocked with each other by means of welding. [Means for Resolution] A hemostatic device 10 includes a band 20 for being wrapped around a wrist W, means 30 for securing the band in a state where the band is wrapped around the wrist, and an inflatable portion 40 that interlocks with the band 20, and that is inflated by injecting gas. The inflatable portion has a first region A1 formed of a thermoplastic material and a second region A2 formed of a thermosetting elastomer whose gas permeability is higher than that of the thermoplastic material. The band has an interlock region 22b which is formed of the thermoplastic material, and with which the inflatable portion interlocks. The first region of the inflatable portion is welded to the interlock region of the band.
