To provide a stool device by which fatigue in the periphery of buttocks owing to sitting for a long time is restricted by means of promoting a blood circulation through the use of electricity during evacuation and also the medical treatment effect on piles is obtained by means of reducing a congestion at an anus in the device arranged on a stool.

This device is provided with a stool and an electric stimulation generating means and is constituted to permit electricity generated from the means to pass through a human body when a person is seated. Then the blood circulation is promoted by the electric stimulation, the fatigue of the buttocks owing to sitting for a long time is restricted and also the congestion at the anus is reduced so that the medical treatment effect on the piles is obtained.