To provide a bidet capable of suppressing a load applied to the discharge side parts of the pulsation flow generating mechanism thereof and of providing sufficient washing feeling to the user.

This bidet comprises a cylinder chamber (volumetric chamber) 6 for generating pulsation in a washing water jetted from a nozzle for jetting the washing water toward the body private part of the user by changing the inner volume thereof, a discharge port 6b communicating with the cylinder chamber 6 and discharging the washing water toward the nozzle, and a suction port 6a communicating with the cylinder chamber 6 and allowing the washing water to supply to the cylinder chamber 6. A check valve 2b opened and closed according to a difference in the pressure of the washing water between the discharge port 6b and the cylinder chamber 6 is installed between the discharge port 6b and the cylinder chamber 6. The suction port 6a is opened at all times.