Make an appointment if:
Ridges appear suddenly on multiple nails
One nail develops a deep ridge while others remain smooth
Ridges are accompanied by discoloration (yellow, green, black)
Nails are splitting, crumbling, or painful
You have other unexplained symptoms (fatigue, weight loss, skin changes)
A Note on Horizontal Ridges
Horizontal ridges (running side to side) are called Beau's lines and are more concerning than vertical ridges. They indicate a temporary interruption in nail growth caused by:
Severe illness or fever
