During the X Mexican Symposium on Medical Physics a special session was dedicated to Hadron Therapy. The technology of accelerators has been applied to cancer therapy for many years. High energy electrons are used to treat tumors, but the energy deposition in living tissue is not optimal considering that it is not focused on the desired volume. The use of protons offers a better option to irradiate tumors. Protons lose most of their energy at the end of their penetration depth. This opens a new technology that makes use of hadrons to get a more precise dose delivery. Topics like MRI, Photoacustic Techniques, Biomagnetism, etc. are discussed as well.