Radioisotope patching is the use of nuclide itself beta rays, so that the local lesion to produce radiation effects, so as to achieve the purpose of treatment of keloid scars. Keloid is a pathological scar tissue secondary to skin trauma, or spontaneous formation of overgrowth. It occurs in the forehead, and can also be located in the neck, shoulder, ear and other parts of the body. As keloid is more sensitive to beta rays, and the principle of radioisotope patch is to use the beta rays of the nuclide itself, which has strong ionization ability and weak penetration, it can make the local lesion produce radiation effect and microvessel atrophy and degeneration, so as to achieve the purpose of eliminating and treating keloid. Its radiation loss to the tissue around the lesion is small, and the curative effect is better. If patients want to use radioisotope patch to treat keloid, they need to take into account their own situation, as well as their personal needs, and ask the doctor’s guidance, do not use it without authorization, so as not to damage their health. During the treatment period, once the symptoms of physical discomfort occur, you need to report to the doctor in time.