Dermatology

Yellow Nails (Xanthonychia)

Understanding the causes, symptoms, and treatment of nails with yellow discoloration.

What are Yellow Nails?

Do your fingernails or toenails appear yellow or dull? Learn what yellow nails indicate and how they can be managed.
Yellow nails, medically called xanthonychia, are characterized by a yellowish discoloration of the nail plate. This can be caused by fungal infections, chronic health conditions, smoking, or repeated nail trauma. Early evaluation can help identify underlying causes and guide effective treatment.

Common Symptoms

  • Nails turning yellow or pale
  • Thickened or slow-growing nails
  • Brittleness or splitting
  • Nails separating from the nail bed (onycholysis) in some cases
  • Occasional foul odor if fungal infection is present

When to see a dermatologist

  • Yellowing persists or worsens over time
  • Nails become thick, brittle, or painful
  • Multiple nails affected simultaneously
  • Associated with respiratory issues, swelling, or other health symptoms
  • Over-the-counter remedies are ineffective

Early detection is important for managing the condition and preventing further complications.

Schedule a consultation today.

Causes and Risk Factors

  • Fungal infections (onychomycosis)
  • Smoking or nicotine staining
  • Chronic respiratory diseases
  • Nail trauma or repeated friction
  • Systemic conditions such as diabetes or thyroid disorders

Diagnosis and Tests

  • Physical and visual examination of the nails
  • Nail clippings or scraping for fungal culture
  • Blood tests to check for systemic conditions
  • Review of medical history and lifestyle habits
  • Assessment of previous nail treatments or trauma

Treatment Options

  • Topical or oral antifungal medications if infection is present
  • Protective nail care to prevent trauma or discoloration
  • Lifestyle adjustments, such as quitting smoking
  • Regular nail trimming and hygiene maintenance
  • Treat underlying systemic conditions if identified

Doral Health & Wellness Skin Health Department

Doral Health & Wellness Dermatology offers comprehensive skin care services for all ages and skin types. Our expert dermatologists provide personalized care for various skin conditions, including acne, eczema, psoriasis, and skin cancer. We offer advanced treatments and cosmetic procedures to help you achieve healthy, radiant skin.

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