A comparative clinical study of 136 female patients with uncomplicated chronic calculous cholecystitis, including 106 patients examined in the pre- and postoperative periods of endoscopic cholecystectomy, revealed the effect of chronic illness and surgery on the neurological status and cognition which was more pronounced in adulthood. We investigated anxiety feelings before and after surgery. Our findings should be taken into consideration in the preoperative preparation of patients and their care in the postoperative period.