10/19/2026
GLP-1s Linked to Nail Detachment and Other Disorders in New Study
New study results linked GLP-1 receptor agonists (RAs) to nail disorders, including a fourfold increase in the incidence of onycholysis. Experts agreed that further investigation is needed and advised against raising unnecessary concerns in patient interactions. The findings were presented on October 1 in a late-breaker session at the European Academy of Dermatology and Venereology (EADV) 2026 Congress in Vienna, by study co-author Bianca Maria Piraccini, MD, PhD, of the Dermatology Unit at the University of Bologna in Bologna, Italy.
GLP-1 RA users had increased nail disorders vs. controls: 66.3% vs 52.8%.
Onycholysis showed the largest signal: 39.3% vs. 8.7%.
Dyschromia, fragility, and ridges/grooves were also more common.
Association persisted after age/sex/co-morbidity adjustment; weight-loss subgroup gap narrowed.
Evidence is hypothesis-generating; prospective blinded studies are needed before practice change.
Source: Medscape [10/9/26]