Does Low Iron Cause Onycholysis? Understanding the Link
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                In rare cases, onycholysis, or the painless separation of the nail plate from its bed, indicates an underlying systemic issue like iron deficiency anemia. Recognizing this less common cause is vital for proper diagnosis and treatment, as many people assume the issue is purely local or cosmetic.