PURPOSE: To use conveniently a toilet bowl having a mirror at the bottom part by permitting the easy observation of a private part in applying a drug to a diseased part, plastering a diseased part and using a suppository or a sanitary product.

CONSTITUTION: A mirror 2 is installed at the bottom part 3 of a toilet bowl 1. The mirror 2 may be substituted by polishing the corresponding part of the toilet bowl made of stainless steel. The shape is arbitrary such as round, elliptical, square, and rectangular shape, and the mirror is arbitrary such as plate shaped mirror, concaved mirror, convex mirror, and the combination of these mirrors. When a user rides over the toilet bowl 1, he or she can easily observe the private part, and then can use the toilet bowl in a exceedingly convenient manner for applying a drug to a diseased part in the vicinity of the anus, plastering a diseased part and using a suppository or a sanitary product.