Normal, healthy adults can stay in bed with the patient after a bone scan, taking care to avoid contamination by the patient’s excretions. However, special populations such as pregnant women, children, and adolescents are not recommended to have contact with patients who have just had a bone scan. Bone scan is a whole-body orthopedic nuclear medicine examination program, in which radioactive drugs are injected before the examination, and after the bones are fully absorbed, the distribution of radionuclides in the bones of the whole body is detected with the imaging instrument capable of detecting radioactivity, and the absorption of radionuclides in the bones is dynamically observed. Just after the bone scan, the radioactive drug in the patient’s body has not yet been fully metabolized, but it usually does not cause substantial harm to the body. In addition, the radioactivity is temporary and relatively short-lived, and will gradually disappear after 48 hours with a lot of water, a lot of urination, and drug metabolism. Therefore, normal healthy people can contact with patients after bone scan, and special groups such as pregnant women, children and teenagers should avoid close contact for 48 hours to avoid adverse effects.