# Muehrcke's nails

> Dark horizontal lines on fingernails

**Wikidata**: [Q6931944](https://www.wikidata.org/wiki/Q6931944)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Muehrcke's_nails)  
**Source**: https://4ort.xyz/entity/muehrcke-s-nails