Related Experiment Video
Updated: Jul 12, 2026

Isolation of Adipose Derived Regenerative Cells for the Treatment of Erectile Dysfunction Following Radical Prostatectomy
Published on: December 28, 2021
Risk of Phimosis Associated With SGLT2i Versus GLP-1RA: A Danish Cohort Study
Christine Ljungberg1, Mette Nørgaard1, Christina Vandenbroucke-Grauls1,2
1Department of Clinical Epidemiology, Aarhus University and Aarhus University Hospital, Aarhus, Denmark.
Objective:
Sodium-glucose cotransporter 2 inhibitors (SGLT2i) induce glucosuria, potentially leading to infection and inflammation in the preputial microenvironment, subsequently increasing the risk of phimosis. We aimed to investigate the risks of phimosis in males with type 2 diabetes initiating SGLT2i or glucagon-like peptide 1 receptor agonists (GLP-1RA).
Research Design And Methods:
In this population-based active-comparator new-user cohort study emulating a target trial, we included all adult male metformin users in Denmark initiating SGLT2i or GLP-1RA between 2016 and 2021. We used inverse probability of treatment weighting to balance the distribution of potential confounders. We estimated weighted intention-to-treat risk and risk ratios of phimosis identified from population-based medical databases.
Results:
In this study, we included 32,486 SGLT2i initiators and 14,793 GLP-1RA initiators with a median follow-up of 4 years (maximum 8 years). The risk of phimosis was elevated among SGLT2i users. The 1-year risk of phimosis was 0.9% among new SGLT2i users and 0.5% among new GLP-1RA users, corresponding to a 1-year risk ratio of 1.88 (95% CI, 1.43 to 2.47). During 8 years of follow-up, the risk of phimosis accumulated up to 4.8% in SGLT2i users and 3.6% in GLP-1RA users, with an 8-year risk ratio of 1.36 (95% CI, 1.14 to 1.61).
Conclusions:
SGLT2i use was associated with a nearly twofold increased phimosis risk 1 year after treatment initiation in men with type 2 diabetes, compared with GLP-1RA use. Over 8 years of follow-up, the risk remained elevated, indicating a persistently higher risk associated with SGLT2i use.
More Related Videos
Related Concept Videos
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Oral Hypoglycemic Agents: Biguanides and Glitazones
Oral Hypoglycemic Agents: Glinides
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...
Dipeptidyl Peptidase 4 Inhibitors
Diabetic Retinopathy

