Annals of phlebology (Ann Phlebology) is a peer-reviewed journal which publishes scientific articles regarding all aspects of venous pathology, including clinical practice, experimental and applied research, and education. The ANN PHLEBOLOGY is the official journal of the Korean Society for Phlebology (KSP) and is published bi-annually on the last days of April and October. The ANN PHLEBOLOGY aims to promote active communication among not only members of the Korean Society for Phlebology but also to the various professionals with interest in venous pathology. To achieve this, we publish original articles, review articles, brief communications including case reports, letters to the editor, and commentaries or opinion on the topics of importance to venous pathology.