what's causing the ridges in my nails
Causes and symptoms of ridges in fingernails Fingernails are made by living skin cells in your fingers. So a skin condition such as eczema may lead to fingernail ridges. Skin dryness can also cause these ridges. If your body is low in protein, calcium, zinc, or vitamin A, a deficiency can sometimes be revealed by ridges in your fingernails. Vertical ridges. Vertical ridges are furrows that run from the tip of your fingernail down to the cuticle.