To prevent urine from being splashed in urination using an insert toilet stool.

A cup 1 is formed into the shape of a boat by stacking several layers of water-soluble paper. A front hanging piece 3 is a slender paper piece, and made by stacking several sheets of water-soluble sheets (the same quality as that of toilet paper). A head part 3a is extended from one end of the paper piece, and the head part is bonded to the peripheral edge of the end part of the cup. The head part 3a is projected like an eaves outside the cup 1, and the part forms a wipe-out part 3b for wiping off wetted pubic hair after urination. In use, the cup 1 is placed on the abdomen part of a patient and the front hanging piece 3 is hung between the thighs to cover the crotch.