A mammography apparatus includes: a radiation source that emits radiation to mammae of a test subject； a support part that supports the radiation source to be rotatable around an axis and moves the radiation source to a plurality of imaging positions where incidence angles of the radiation to the mammae are different from each other； a face guard that protects the test subject from the radiation emitted from the radiation source； and at least one pair of arms that is rotatably connected to the face guard at one end thereof, is rotatably connected to a holding part that maintains a stationary state with respect to the rotation of the radiation source at the other end thereof, includes a bending part between the one end and the other end, and is rotatable around a rotation axis that connects the one end and the other end.
