TOOTHBRUSH

The objective of the present invention is to provide a toothbrush with which it is possible to recognize an appropriate brushing pressure, with a high degree of versatility. This toothbrush includes a head portion (10) which is provided on a tip end side in a long axis direction and which has a bristle implanting surface, a grip portion (30) disposed on a rear end side of the head portion, and a neck portion (20) disposed between the bristle implanting surface (11) and the grip portion, wherein a sensing portion (70) for sensing that an external force in a first direction orthogonal to the bristle implanting surface has exceeded a threshold is provided on the rear end side of the bristle implanting surface. The toothbrush is provided with an inverting portion (80) which connects a first region on the tip end side of the sensing portion and a second region on the rear end side thereof, and which snap buckles and inverts in conjunction with displacement of the head portion toward a back surface side as a result