What are the advantages of proton therapy for cancer?

Radiation used in tumor radiotherapy can be mainly divided into photon beam and particle beam. Traditional radiotherapy uses photon beams (X-rays and γ-rays), while proton therapy uses proton beams, which belong to particle beams. Proton therapy is to use proton accelerator to generate high-energy proton beam, which is absorbed into human body under precise control and accurately releases energy to the focus to achieve therapeutic effect.

Compared with traditional radiotherapy, proton therapy has at least four advantages: 1. Improve the level of tumor irradiation, concentrate the radiation dose on tumor tissue, avoid the influence on surrounding normal tissues and cells, and reduce complications. 2. Patients can maintain normal life without long-term hospitalization. 3. Sensitive parts such as eyeballs can also be used without side effects. 4. It can enhance the effect of radiotherapy and chemotherapy.