The contrast agent used in bone scanning will have a certain amount of radiation to the human body, which may affect the health of others. Although there is no specific requirement on how long the isolation period should be, it is recommended to isolate the patient for one to two days. Bone scanning, also known as nuclide scanning, belongs to the nuclear medicine imaging examination, which is to detect the metabolic abnormality of bone tissue through radionuclide, and is used to assist in clarifying the clinical diagnosis. Usually the body is injected with radioactive contrast agent, which is radioactive to the human body and usually takes 1~2 days to be completely metabolized and excreted from the body. Therefore, it is recommended that patients avoid staying in crowded places after the bone scan, and if there are children or pregnant women in the family, it is recommended to suspend contact with them, so as to avoid the radiation in the body affecting the health of others. After the bone scan, patients should also pay attention to rest, eat a light diet, and drink more water to promote the early metabolism of radioactive substances out of the body.