A hemostatic device can inflate an inflatable portion without using a separate dedicated instrument, can reduce an unpleasant feeling of a wearer, and can prevent a site where bleeding is to be stopped from being unintentionally and unnecessarily compressed. The hemostatic device has a band for being wrapped around a limb, an inflatable portion that is inflated by injecting gas, an injection part that is configured to inject gas into the inflatable portion, and a flow route that permits communication between the inflatable portion and the injection part. The flow route includes a backflow preventer which prevents gas from flowing out to the injection part from the inflatable portion. The injection part is located on the band, and includes holes which penetrate the injection part in a direction intersecting a perpendicular line to a region of the band where the injection part is located.