The present invention is a method for a bleedingless surgical tool that induces cavitation in blood vessel, tissue, and/or body fluid to facilitate platelet plug formation and induces cavitation together with a temperature rise to facilitate fibrin formation, inducing and enhancing blood clotting such that bleeding does not occur while cutting is in progress. The present invention is further a bleedingless surgical tool comprising a cutting portion of the surgical tool and an ultrasonic vibration generating portion forming by an ultrasonic alternating power source and an ultrasonic vibration transducer, which during cutting of live tissues and blood vessels induces cavitation in the blood vessel, tissue, and/or body fluid to facilitate platelet plug formation and induces cavitation and temperature rise to facilitate fibrin formation, inducing and enhancing blood clotting such that bleeding does not occur while the cutting is in progress.
