To solve the problem that a conventional anus washer is heavy due to a large number of components and a failure easily occurs because there are many connection parts, and it is hard to apply washing liquid to the anus appropriately because its nozzle is a long and straight pipe.

The anus washer has a simple structure consisting of only a main body tank 1 made of a material which is curved when pressurized and which restores its shape naturally when pressurizing is stopped and a cap nozzle 2, so that its weight is reduced and a failure does not occur easily. Moreover, the nozzle part of the cap nozzle is shortened and curved gently, so that the washing liquid is appropriately applied to the anus.