To provide a brush capable of easily removing adhered fallen hair.

The body 12 of a shampooing brush 23 has a first through-hole row 26 with many circular through-holes 24 arrayed linearly, and a second through-hole row 28 passing the center point of a segment between the centers of adjacent through-holes 24 among the through-holes 24 to form the first through-hole row 26, and having many circular through-holes 24 with centers on a linear line orthogonally crossing the segment in such a state as laid along a linear line parallel to the first through-hole row 26. Also, the rows 26 and 28 are alternately arranged repeatedly. In addition, projections 14 are formed approximately at the center of the part of the body 12 between nearby three through-holes 24 at the preset intervals. According to this constitution, fallen hair twisted and accumulated around the projections 14 are easily removed by feeding a water flow running through the holes 24 from the reverse side of the projections 14.