Research presented at the European Association for the Study of Diabetes reveals that sexual activity does not significantly increase the risk of hypoglycaemia in adults with type 1 diabetes, providing reassurance and evidence-based guidance for management.
New research to be presented at the European Association for the Study of Diabetes meeting in Milan suggests that sexual intercourse does not raise the risk of clinically significant hypoglycaemia for adults with type 1 diabetes, even when it happens at night. The findings, from Dominica Orłowska of the Medical University of Warsaw and colleagues, are based on continuous glucose monitoring data rather than questionnaires or interviews, adding objective evidence to a subject that has long been guided more by fear than by measurement.
The study followed 12 adults with type 1 diabetes over three months and recorded 110 sexual activity events. Participants used continuous glucose monitors, which the US National Institute of Diabetes and Digestive and Kidney Diseases says are recommended for people with type 1 diabetes because they provide real-time readings and help guide day-to-day management. In this study, no clinically significant hypoglycaemia was observed. Instead, glucose levels moved in both directions: in some cases they fell, in others they rose.
The pattern was not random. Higher pre-sex glucose was linked with a larger drop afterwards when glucose fell, and a smaller rise when it climbed. Night-time activity was associated with a modest fall in glucose, while daytime activity was not. The researchers also reported that people with a body mass index of 25 or above saw a bigger decline than those below that threshold. None of the male participants reported erectile dysfunction.
The results fit with wider diabetes guidance that stresses monitoring before and after sex, particularly for people using insulin. The NIDDK says regular glucose checks can help prevent both low and high blood sugar during sexual activity, and managing glucose well remains important for sexual health more broadly. Previous research has also linked better glycaemic control with fewer sexual complications in men with type 1 diabetes, underlining that intimacy and diabetes care are often closely connected.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
