Introduction:The radiations used during surgery are electromagnetic radiations, similar to visible light, but of shorter wavelength, which penetrates materials that absorb light. The relevant concepts, there are several factors that can affect the absorption, such as thickness, density, atomic number, contrast media, kilovoltage, filtration, the composition of the target and the distance from where the beam emanates. The federal regulation code in the United States establishes a permissible level in the hands of 18,750 mlrem to three months or 70 rems per year, but it should be noted that in the bibliography consulted, it is not necessary to specify what the minimum amount of harmful radiation is. Within these risks, malignancy has been reported at the level of the eye lens, liver, spleen, gonads and skin, and complications at low doses in relation to the risk of thyroid cancer in adults. Conclusion: Monitoring of real radiation with evaluations every three months should be considered, since it is cumulative, so it must be taken into account what is not known and not seen, of the likely long-term risks.