Introduction: Radiodermatitis or radiation dermatitis is a side effect that is produced in the skin and skin adnexal as a consequence of exposure to radiotherapy. There are several factors that influence the occurrence of radiodermatitis: factors related to the patient (intrinsic), such as: age, race, comorbid conditions, nutritional status and factors associated with treatment (extrinsic), such as: dose radiotherapy, fractionation and radiotherapy techniques.
Methods and results : This study is a descriptive observational study with prospective approach in 50 patients who received radiotherapy in Haji Adam Malik Hospital in Medan. History taking by anamneses and dermatological examinations were conducted to all subjects on the first day, 3 weeks and 8 weeks during radiotherapy. From this study, the majority of the patients are women, age 40-60 years old. The most clinical features is erythema macular rash (100%) and the most location is in the coli region. The majority of total dose is 5000-5900 cGy, and the most fractionation used 31-40 fraction.
Conclusion: The results of this study indicate that elderly, high total dose and fractionation leads to an increased risk of radiodermatitis.