This study aimed to retrospectively examine the indirect haemagglutination (IHA) test results of patients suspected of cystic echinococcosis (CE) and admitted to Bursa Uludağ University Health Practice and Research Center Hospital. Serum samples in the serology laboratory of our hospital were evaluated using the commercial Cellognost® echinococcosis IHA (Siemens Healthcare Diagnostics, Marburg, Germany) test based on the manufacturer's recommendations. In the IHA test, ≥1:64 serum titres were accepted as positive. Seropositivity was determined in 213 (19.9%) of 1.072 patients suspected of having CE by the IHA method. Of the patients with seropositivity, 120 (56.3%) were female and 93 (43.7%) were male. The highest positivity rate in both sexes was found in patients aged 20-29 years (22.5% in women; 14.1% in men). The results indicate that CE maintains its importance as a public health problem in Bursa as in Turkey.