Abstract: A bristled computer mouse is described. The new typed mouse have sparsely populated bristles or teeth on the back, which are meant to facilitate dissipating of heat accumulated under user's palm by prolonged use, and to supply passive or active massaging effects to the user's palm by just holding and using. This new mouse can provide relaxation, stimulation and comfort by releasing the heat, the numbness and fatigue of the palm and hand. By its appearance this type of mouse can also be called a computer hedgehog.