Carbon ion therapy is a type of cancer treatment that uses charged particles called carbon ions to target and destroy tumor cells. Unlike traditional radiation therapy, which uses X-rays, carbon ions can penetrate deeper into tissues and deliver more energy directly to the tumor while sparing surrounding healthy tissue. This precision makes it particularly effective for certain types of cancers. The therapy works by damaging the DNA of cancer cells, which prevents them from growing and dividing. Carbon ion therapy is often used for tumors that are hard to treat with conventional methods, such as those located near vital organs or in complex anatomical areas.