These are thin, raised lines that run from the cuticle to the tip of the nail. They are common and often associated with aging. Vertical ridges are typically harmless but may occasionally signal nutrient deficiencies or dehydration.
Horizontal Ridges (Beau’s Lines):
These are depressions that run across the width of the nail. Beau’s lines may indicate a disruption in nail growth, often caused by illness, injury, or severe stress. Conditions like diabetes, zinc deficiency, or even high fever can lead to these ridges.