The overlap of COPD and bronchiectasis is very common in the general population. Thanks to HRCT, awareness of the prevalence of bronchiectasis and its effect on COPD has increased. Nevertheless, bronchiectasis in COPD is still often unrecognized and undiagnosed. Bronchiectasis affects the course and outcomes of COPD in terms of rapid progression of the disease, resulting in the need for more frequent implementation of HRCT diagnosis of the thorax to detect them early. This study aims to determine the prevalence and impact of bronchiectasis on patients with COPD in KBC Rijeka. The participants were the patients with COPD who were admitted to KBC Rijeka from January 2020 to December 2021. The patient list was obtained from IBIS, by entering the diagnosis code for COPD according to ICD-10: J44.1, J44.9, and J43. The study included COPD patients with a prior diagnosis, aged ≥40 years, who had a CT of the thorax done as part of the treatment. A list of 130 patients was obtained after which the patients were divided into two groups: a group of subjects with COPD with a thorax CT scan verified bronchiectasis and a group of subjects with COPD without bronchiectasis. Age, gender, smoking status, and the number of exacerbations were compared between these two groups. This retrograde study demonstrated that prevalence of bronchiectasis in COPD was 12,31%. In both groups examined, it was shown that males and those of older age are more likely to get sick. The only parameter that differs between the examined groups is the number of exacerbations, where the number of exacerbations is significantly higher in the group of COPD patients with bronchiectasis, compared to the group without bronchiectasis. In conclusion, the prevalence of bronchiectasis in COPD patients has grown over the years and will continue to grow. The reason for this is exposure to factors conducive to their development. Older men, according to statistics, are a risk group for the development of the COPD phenotype with associated bronchiectasis, the overlap of COPD and bronchiectasis. More precisely, this research proved that the presence of bronchiectasis is an indicator of the severity of COPD. Therefore, HRCT is an inevitable step and the gold standard in the early detection and assessment of the association of bronchiectasis with COPD