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Medical Author: Melissa Conrad Stöppler, MD
Pitting of the nails, typically the fingernails, is characterized by depressions in the surface of the nail. Nail pitting is caused by defective development of the layers of the superficial nail plate. It is common in patients with psoriasis and can affect up to 50% of people suffering from this condition. Nail pitting can also be associated with other conditions, including connective tissue disorders, alopecia areata, and sarcoidosis. Any condition that can cause a superficial and localized inflammation of the skin (dermatitis) can also affect the nails and result in nail pitting. Nail pitting can be associated with other abnormalities of the nails, including nail separation, flaking or crumbling, or other damage to or changes in the nail. Nail pitting that is associated with disease processes generally shows involvement of multiple or all nails, while trauma to an individual nail bed can cause localized pitting or disruptions in a single nail.
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Fawcett, Robert S., and Sean Lindord. "Nail Abnormalities: Clues to Systemic Disease." American Family Physician 69.6 Mar. 15, 2004: 1417-1424. <http://www.aafp.org/afp/2004/0315/p1417.html>.
"Fingernail Abnormalities." Medscape.com. <http://reference.medscape.com/features/slideshow/fingernail-abnormalities>.
Causes of Nail Pitting
In This ArticleAlopecia Areata Article
- Alopecia areata facts
- What is alopecia areata?
- What causes alopecia areata?
- What are the different patterns of alopecia areata?
- Who is affected by alopecia areata?
- How is alopecia areata diagnosed?
- What is the treatment for alopecia areata?
In This ArticleAtopic Dermatitis Article
- Atopic dermatitis facts
- What is atopic dermatitis?
- What is the difference between atopic dermatitis and eczema?
- How common is atopic dermatitis?
- What causes atopic dermatitis?
- Is atopic dermatitis contagious?
- What are atopic dermatitis symptoms and signs?
- Can atopic dermatitis affect the face?
- What are the stages of atopic dermatitis?
- How do physicians diagnose atopic dermatitis?
- What factors can aggravate atopic dermatitis?
- What are skin irritants in patients with atopic dermatitis?
- What are allergens?
- What are aeroallergens?
- What is the treatment for atopic dermatitis?
- What is the prognosis of atopic dermatitis?
In This ArticleEczema Article
- Eczema facts
- What is eczema?
- Are there different types of eczema? What causes eczema?
- What are eczema symptoms and signs?
- How is eczema diagnosed?
- What is the treatment for eczema?
- What are home remedies for eczema?
- Does diet affect eczema?
- Is there a cure for eczema?
- Is eczema contagious?
- What is the prognosis of eczema?
- Is it possible to prevent eczema?
In This ArticleLichen Planus Article
- Lichen planus facts
- What is lichen planus?
- What causes lichen planus?
- How is the rash of lichen planus different from that of most other common rashes?
- What are the symptoms and signs of lichen planus?
- What does lichen planus look like?
- How is lichen planus diagnosed?
- What is the treatment for lichen planus?
- What is the long-term prognosis of lichen planus?
In This ArticlePsoriasis Article
- Psoriasis facts
- What is psoriasis?
- What causes psoriasis?
- What does psoriasis look like? What are psoriasis symptoms and signs?
- Can psoriasis affect my joints?
- How do health-care professionals diagnose psoriasis?
- Can psoriasis affect only my nails?
- How many people have psoriasis?
- Is psoriasis curable?
- Is psoriasis contagious?
- Can I transmit the gene for psoriasis to my children?
- What kind of doctor treats psoriasis?
- What is the treatment for psoriasis?
- What creams, lotions, and home remedies are available for psoriasis?
- What oral medications are available?
- What injections or infusions are available for psoriasis?
- What about light therapy for psoriasis?
- Where can I get more information on psoriasis?
- Is there a national psoriasis support group?
- What is my long-term prognosis with psoriasis? What are complications of psoriasis?
- What does the future hold?
In This ArticleSarcoidosis Article
- Sarcoidosis facts
- What is sarcoidosis?
- What are symptoms of sarcoidosis?
- Who gets sarcoidosis?
- What we know about sarcoidosis
- Some things we don't know about sarcoidosis
- How is sarcoidosis diagnosed?
- What are some signs and symptoms that suggest possible sarcoidosis?
- What do laboratory tests show?
- How is sarcoidosis treated?
- Living with sarcoidosis
- Where can a person find more information on sarcoidosis?
Other Causes of Nail Pitting
- Chemical Dermatitis
- Incontinentia Pigmenti
- Reiter's Syndrome
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