It’s been 4 years since the particle implant and the radiation is not significant. Particle implantation is a kind of treatment in which a radioactive source is implanted inside the tumor to let it destroy the tumor. There will be slight radiation after implantation, but the radiation will disappear with time, so the radiation is not significant 4 years after implantation, and there is no special effect on the tissues and organs of the body. After the particle implantation operation, patients need to go to the hospital for regular review. Patients should also pay attention to increasing the intake of milk, lean meat and other high-quality proteins, exercising appropriately in order to improve their own resistance, pay attention to rest, do not stay up late, and keep their moods happy. For cancer patients, it is recommended that they go to regular hospitals and choose the appropriate way of active treatment under the guidance of doctors, in order to obtain the best therapeutic effect.