To provide a toilet on which a person can sit in an unstrained posture for a long time and which can prevent sicknesses such as piles, polypus, intestinal cancer, etc., without imposing any excessive burden on the anus or the intestines when evacuation is made.

A toilet is so constituted that a toilet seat is mounted on a rim part of a toilet main body 1A in an openable manner. The rim part is inclined downward in the rear at an angle of inclination 2-30°. By the constitution, a user is capable of sitting down on the toilet in an unstrained posture for a long time, and sicknesses such as piles, polypus, intestinal cancer, etc., can be prevented without imposing any excessive burden on the anus or the intestines when evacuation is made.