From the point of view of the mechanism of action, boron neutrons can treat cancer, but this kind of treatment is still in the stage of clinical research and has not been used in the clinical treatment of breast cancer, so this claim is false. Boron neutron therapy for breast cancer mainly refers to boron neutron capture therapy technology. Boron is an isotope which has strong affinity with cancer cells, and boron enters into the body of cancer patients and can gather around the cancer cells, then irradiate the cancer cells through neutron rays to kill the cancer cells with less damage to the surrounding normal tissues. Boron neutron therapy for breast cancer is still in the clinical research stage and has not been used in the clinical treatment of breast cancer, so there is no data on its efficacy and the safety of the treatment, so it cannot be used in the treatment of breast cancer yet.