Physiological vs Pathological Nail Ridges: How to Tell
Vertical ridges are normal aging in 85% of adults over 65; horizontal Beau's lines signal illness, deficiency, or medication disruption needing evaluation.
Ridged Nails (Symptom)
4 source-based articles maintained by the HealthRX.com Editorial Team.
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2topic areas covered
May 25, 2026latest review
Ridged Nails (Symptom) library
Showing 4 of 4 clinical reviews.
Physiological vs Pathological Nail Ridges: How to Tell
Vertical ridges are usually normal aging, but Beau's lines or severe ridging need CBC, ferritin, TSH, and zinc tests. See what distinguishes each type.
Ridged Nails: When to See a Doctor
Vertical and horizontal nail ridges explained: causes, red flags, diagnosis, and treatment. Board-reviewed clinical guidance from the HealthRX.com medical team.
Ridged Toenails Treatment: Causes and Fixes
Ridged toenails often stem from age, chemo, retinoids or antiseizure drugs. Biotin 2.5mg daily for 6 months improved nail thickness 25% in studies.