Does Iron Deficiency Cause Dents in Nails? The Truth About Koilonychia
                                
                                
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                                    4 min read                                
                            
                                According to the Cleveland Clinic, a common sign of iron deficiency anemia is koilonychia, a condition where nails become soft and have a spoon-shaped dent. This is not just a cosmetic issue but a visible marker of an underlying systemic problem that requires attention.