The invention relates to a system (1) for treating an epistaxis, comprising: a compressible body (20, 120) designed to come into contact with walls of a nasal cavity of a patient, or surrounded by a veil of hemostatic properties an envelope (30, 130) designed to envelop the compressible body (20, 120) and a compression device for compressing (10, 110) the compressible body (20, 30) in the envelope, said compression device being designed so as to compress or release the compressible body (20, 120).
