Abstract: Through case analysis on occupational radiation-induced diseases diagnosed in recent years in some provinces and cities in China, this study identifies issues in the diagnosis of occupational radiation-induced diseases and explores solutions. A total of 45 cases were collected from Sichuan, Jiangsu, Inner Mongolia, Shandong, Henan, Tianjin, Anhui, Zhejiang, and the nuclear industry system (8 provinces and 1 system). Additionally, 29 cases were collected from other provinces or provinces that did not report to the system, resulting in a total of 74 cases. The medical records were aggregated and analyzed. A questionnaire survey was conducted among 140 diagnostic physicians from 8 provinces and 1 secction to assess their awareness of standards, participation in standard dissemination, and application of standards. From 2013 to 2020, a total of 74 individuals were diagnosed with occupational radiation-induced diseases, involving 83 cases. Among these, 35 individuals (42 cases) were diagnosed with harmful tissue reactions (deterministic effects), with the top three diseases being radiation-induced cataracts, radiation-induced skin injuries, and chronic radiation sickness. Additionally, 39 individuals (41 cases) were diagnosed with radiation-induced tumors, with the top three being radiation-induced thyroid cancer, radiation-induced leukemia, and radiation-induced lung cancer. Eight individuals were diagnosed with two or more types of occupational radiation-induced diseases. The awareness rate of diagnostic standards among physicians was 76.2%, and 77% of physicians participated in standard dissemination activities. Regarding standard application, 51.2% of physicians reported not using the standards or using them fewer than two times per year. The analysis reveals that in the diagnosis of occupational radiation-induced diseases, there are issues such as overestimation of radiation doses and low awareness and usage rates of diagnostic standards. Understanding the current status of occupational radiation-induced diseases is essential to address these challenges.

Key words: occupational radiation sickness, standard assessment, questionnaire survey, case analysis