Objective  To analyze the current situation, hot spots and frontier of studies relating to impaired awareness of hypoglycemia (IAH).

  Methods  CiteSpace5.7. R5 software was used to visually analyze IAH related literatures in Web of Science (WOS) core set, PubMed and Scopus databases from January 1, 1991 to March 15, 2021.

  Results   A total of 593 IAH-related literatures were retrieved, and 209 literatures were finally included for visual analysis. The number of articles published was featured as three stages: slow, steady and rapid growth. Britain, America and scholars had laid the foundation for research in this field. Close cooperation was observed among research institutions. The frequency of international cooperation was unbalanced. The research contents mainly focused on the research and discussion of the adverse effects of IAH, IAH technical intervention and structured education.

  Conclusion   The researches on IAH in foreign countries are carried out earlier and relatively mature, but are still in its infancy in China. It is suggested that Chinese clinical researchers should strengthen the researches relating to IAH, implement effective intervention measures and improve the adverse outcomes of patients with hypoglycemia.