PURPOSE: To constitute a stool so that excrements and urine can be evacuated separately and the handleability and cleanliness can be enhanced by providing a rising part in one end edge of a Western-style stool main body and also forming the urine stool part by using the rising part.

CONSTITUTION: In the stool 1, the rising part 6 having the urine stool part is formed in one end edge of the Western-style stool main body 3 having a lavatory seat 2. Also, the rising part 6 forms a water tank 7 in its inside, and the Western-style stool main body 3 and the rising part 6 constitute an integral base body 20. In its rear part B, by forming the inclined face 33 by the rear wall of a water tank T on its rear face and also extending and providing it vertically, the vertical urine stool part 5 which even a child can use conveniently is formed.