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You are here : AllRefer.com > Health > Medical Symptoms > Nail abnormalities

Nail abnormalities

Alternate Names : Beau's lines, Fingernail abnormalities, Spoon nails, Onycholysis, Leukonychia, Koilonychia, Brittle nails


Definition

Nail abnormalities are problems with the color, shape, texture, or thickness of the fingernails or toenails.

Overview & Considerations

Just like the skin, the fingernails tell a lot about your health.

  • Beau's lines are depressions across the fingernail. These lines can occur after illness, injury to the nail, and when you are malnourished.
  • Brittle nails are often a normal result of aging. However, they also may be due to certain diseases and conditions.
  • Koilonychia is an abnormal shape of the fingernail. The nail has raised ridges and is thin and curved inward. This disorder is associated with iron deficiency anemia.
  • Leukonychia is white streaks or spots on the nails.
  • Pitting is the presence of small depressions on the nail surface. Sometimes the nail is also crumbling. The nail can become loose and sometimes falls off.
  • Ridges are tiny, raised lines that develop across or up and down the nail.
Common Causes

Injury:

  • Crushing the base of the nail or the nail bed may cause a permanent deformity.
  • Chronic picking or rubbing of the skin behind the nail can cause a washboard nail.
  • Long-term exposure to moisture or nail polish can cause nails to peel and become brittle.

Infection:

  • Fungus or yeast cause changes in the color, texture, and shape of the nails.
  • Bacterial infection may cause a change in nail color or painful areas of infection under the nail or in the surrounding skin. Severe infections may cause nail loss.
  • Viral warts may cause a change in the shape of the nail or ingrown skin under the nail.
  • Certain infections (especially of the heart valve) may cause red streaks in the nail bed ( splinter hemorrhages).

Diseases:

  • Disorders that affect the amount of oxygen in the blood (such as abnormal heart anatomy and lung diseases including cancer or infection) may cause clubbing.
  • Kidney disease can cause a build-up of nitrogen waste products in the blood, which can damage nails.
  • Liver disease can damage nails.
  • Thyroid diseases such as hyperthyroidism or hypothyroidism may cause brittle nails or splitting of the nail bed from the nail plate (onycholysis).
  • Severe illness or surgery may cause horizontal depressions in the nails (Beau's lines).
  • Psoriasis may cause pitting, splitting of the nail plate from the nail bed, and chronic destruction of the nail plate (nail dystrophy).
  • Other conditions that can affect the appearance of the nails include systemic amyloidosis, malnutrition, vitamin deficiency, and lichen planus.

Poisons:

  • Arsenic poisoning may cause white lines and horizontal ridges.
  • Silver intake can cause a blue nail.
Pictures & Images

Nail infection, candidal
Nail infection, candidal

Koilonychia
Koilonychia

Onycholysis
Onycholysis

White nail syndrome
White nail syndrome

Yellow nail syndrome
Yellow nail syndrome

Half and half nails
Half and half nails

Yellow nails
Yellow nails

Brittle nails
Brittle nails

   
      See all Pictures & Images



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Review Date : 4/17/2009
Reviewed By : Michael Lehrer, MD, Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.



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