In 1989, the Hong Kong Society of Endoscopy Nurses (HKSEN) was established as a Non-Government Organization (NGO) by a group of Hong Kong Endoscopy nurses. It had operated for 29 years with around 700 members from both public and private sectors in Hong Kong.
In 2019, HKSEN transformed to support the Establishment of the Asian Society of Endoscopy Nurses (ASEN).
ASEN is a non-profit making organization for the advancement of health and social welfare to the Hong Kong community for the relief of patients with endoscopy services for the benefit of Hong Kong community.