This study aimed to investigate the difference in anxiety levels between patients undergoing gastroscopy only and those subjected to both gastroscopy and colonoscopy. Despite known preoperative anxiety impacts, no prior research has compared these specific patient groups. A total of 150 patients were divided equally into two groups: Group I, undergoing gastroscopy only, and Group II, undergoing gastroscopy and colonoscopy. Inclusion criteria were patients in the age range 18-70 years and having an ASA (American Society of Anesthesiologists) physical status classification of I-III. Exclusion criteria were patients outside the age range, and patients with hearing disorders, psychiatric disorders, dementia, or recent anxiolytic drug use. Anxiety was analysed using the Beck Anxiety Inventory Scale before procedures, without any premedication. Patients in Group II had significantly higher anxiety levels, with particular increases noted in symptoms such as leg weakness and tremors, inability to relax, and fears of adverse events and death. These results highlighted a considerable elevation in anxiety among patients anticipating or undergoing combined endoscopic procedures. The findings revealed that undergoing combined gastroscopy and colonoscopy procedures significantly elevated patient anxiety levels compared to gastroscopy alone. This suggests a critical need for healthcare providers to implement more strong preoperative counselling and anxiety reduction strategies for patients facing multiple procedures. Addressing this increased anxiety could lead to better patient experiences, reduced procedural complications, and improved satisfaction and outcomes.