Introduction:

Every year more than 2.3 million cases of breast cancer are registered, making it the most common type of cancer among adults. The association between breast cancer and occupational factors is an issue that has been studied in the literature since the beginning of the 18th century. Technological developments have allowed a more in-depth study of the relationship between breast cancer and occupational factors such as exposure to chemicals, pesticides, metals and also sources of exposure to ionising and non-ionising radiation.The aim of the present literature review is to complete an update on the scientific knowledge about the relationship between occupational exposure to ionising radiation in healthcare workers and the development of breast cancer.

Methodology:

A research was carried using Medline with the PubMed search engine and Elsevier with the Science Direct search engine. The search words used were a combination of breast cancer, occupational exposure, ionizing radiation and healthcare workers. A research was also carried out in Revista Portuguesa de Saúde Ocupacional, using the terms “Breast Cancer” and “Ionizing Radiation”.

Discussion/Conclusions:

Current literature is not unanimous about the specific clinical and pathological features of breast cancer possibly linked to occupational settings. Healthcare professionals such as radiology technicians, nurses, orthopaedic surgeons and interventional cardiologists are especially vulnerable to this type of exposure, particularly to ionising radiation. However, some studies have pointed to a difficulty in establishing a causal relationship between these factors due to the number of variables involved, such as the duration and intensity of exposure and the influence of other risk factors. Changes in equipment, procedures and protective measures have resulted in lower doses in recent years, which means that the risk of breast cancer is low at current levels of occupational exposure to ionizing radiation.

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