To provide a safe Western-style toilet not causing pain in a limited part on the back side of a thigh or trouble (occurrence of numbness of a foot, anemia or the like) by pressure on a thigh artery.

The Western-style toilet includes a rubber cushion 301 and gas springs 302 that are a gentle motion inclination means for changing the position of a seat surface part 101 on which a user is seated, from a horizontal position horizontal to an installation surface to an inclination position inclined to the installation surface, with gentle motion by changing an excretion posture from an excretion first posture being a posture wherein the user straightens the back when the user starts to be seated to an excretion second posture being a posture wherein the user inclines the upper body forward and hunches the back.