The purpose of the present invention is to obtain a ring-inner-diameter-adjustable multi-protrusion ring perineal region muscle exercise equipment, which is worn on the penis at normal times such that the pressing amount on the penis is adjusted by the rolling or the unrolling of an end or both ends of a ring-inner-diameter-adjustable multi-protrusion ring, and allows the correct use of muscle to be accurately recognized and confirmed through a self-awareness of penile distension caused when the perineal region muscle necessary for only exercise is contracted, thereby inducing perineal region muscle-reinforcing exercise. Since a pressing strength on the penis is adjusted by the rolling or the unrolling of an end or both ends of a ring-inner-diameter-adjustable multi-protrusion ring, the present invention can be flexibly and easily applied to the penis of which erection rigidity or length changes every moment in various ways because of psychological, physical, environmental, and psychological factors and the like at normal times or even during intercourse. In addition, the present invention is very useful to a critical urinary incontinence patient who needs separate adhesive tape for performing fixing such as when using an external (condom-type) catheter, or can fix a condom so as to prevent unwanted pregnancy caused by a delayed condom removal incident in which, when penile erection is rapidly lost immediately after an orgasm of a sexual climax, only the penis is removed from the vagina while a condom, which becomes slipperier and heavier because of ejaculated semen, remains therein.La présente invention a pour but d'obtenir un équipement d'exercice musculaire de région périnéale à anneau à protubérances multiples et à diamètre interne annulaire ajustable, qui est porté sur le pénis à des moments normaux, de telle sorte que l'amplitude de pression sur le pénis est ajustée par l'enroulement ou le déroulement d'une extrémité ou des deux extrémités d'un anneau à protub
