To solve the problem that underwear is soiled with feces which are naturally and unconsciously leaked so as to release an odor and to give an unpleasant feeling and a fart to be naturally leaked releases a malodor and sound so as to change a circumferential atmosphere, etc.

When the feces to be naturally leaked are blocked at an outlet from a rectum to an anus till a user reaches a lavatory bowl, the odor is not released. The user obtains easiness when he/she does not have to be careful not to allow the fart to be released in a serious situation. Stoppers 1, 2, 3, 4, which are freely put in/out and are not harmful to a human body, are inserted from the anus to the outlet of the rectum at the outlet from the rectum to the anus, the anus, or the outlet of the anus, so that the feces and fart are temporarily prevented from being released by the stoppers. When a medicine is applied on the stopper so as to be directly applied at a time to various kinds of piles or the material of the stopper is changed according to purposes, the stopper serves as the stopper or a tool by which internal gas is absorbed with activated carbon and mineral ores or magnetism are freely put in/out. When the discharge of the feces has to be performed based on the determination of a medical specialist, the discharge of the feces is also performed with the use of the stopper.