Ion therapy is a type of treatment that uses charged particles, or ions, to target and destroy cancer cells. This method can be more precise than traditional radiation therapy, as it minimizes damage to surrounding healthy tissue. Ion therapy is often used for tumors that are difficult to reach or treat with conventional methods. The most common form of ion therapy is proton therapy, which uses protons to deliver radiation directly to the tumor. Another type is heavy ion therapy, which employs heavier particles like carbon ions. Both therapies are part of a growing field of advanced cancer treatments aimed at improving patient outcomes.