The invention aims at reducing the burden on a finger holding a comb and to increase the grip force of the finger holding the comb. A comb (1), wherein curved first and second concave portions are each formed on both outer circumferential edges of one comb end (3) and the other comb end (4) in the width direction, and curved first and second comb tooth concave portions are formed on both outer circumferential edges of a plurality of comb teeth (6) in the width direction. When either the one comb end (3) or the other comb end (4) is primarily held by a finger, the finger fits into the first orthe second concave portion of the one comb end (3) or the other comb end (4) and also fits into the first or the second comb tooth concave portion of each comb tooth (6) in the vicinity. Because the concave portions are curved, the portions are in surface contact with the finger, the grip force of the finger is dispersed, and the load on the finger is reduced. The grip force is increased due to the finger fitting into the concave portions.