1Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
2Department of Nursing, Taichung Veterans General Hospital, Taichung, Taiwan 3Division
of Gastroenterology, Department of Internal Medicine, Taichung Veterans General Hospital,
Taichung, Taiwan 4National Yang-Ming University 5Chung-Shan Medical University,
Taichung, Taiwan Corresponding Author: Ming-Chiu Ou, Department of Applied
Cosmetology, Hungkuang University, No. 34, Chung-Chie Rd. Sha-Lu, Taichung, 43302 …

Abstract Background/Aims: Colonoscopy is generally tolerated, some patients regarding the
procedure as unpleasant and painful and generally performed with the patient sedated and
receiving analgesics. The effect of sedation and analgesia for colonoscopy is limited.
Aromatherapy is also applied to gastrointestinal endoscopy to reduce procedural anxiety.
There is lack of information about aromatherapy specific for colonoscopy. In this study, we
aimed to performed a randomized controlled study to investigate the effect of aromatherapy …