Nail Pitting: What's Causing Those Tiny Dents?

Psoriasis

Nail pitting is a common symptom of psoriasis, a chronic autoimmune disease that affects the skin and nails. It occurs due to abnormal cell turnover in the nail matrix.

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Eczema

Chronic eczema, particularly when it affects the fingertips, can lead to nail pitting. The inflammation associated with eczema can disrupt nail growth and cause pitting.

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Alopecia Areata

This autoimmune condition primarily causes hair loss, but it can also result in nail abnormalities, including pitting.

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Connective Tissue Disorders

Certain connective tissue disorders, such as rheumatoid arthritis and systemic lupus erythematosus, can lead to nail pitting as a result of inflammation and immune system dysfunction.

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Infections

Fungal or bacterial infections that affect the nail bed can cause nail pitting. Fungal infections like onychomycosis can lead to pitted and discolored nails.

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Injury or Trauma

Physical trauma to the nail matrix, such as a crush injury or repeated pressure, can result in irregular nail growth and pitting.

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Nutritional Deficiencies

In some cases, deficiencies in nutrients like zinc, iron, or biotin can contribute to nail abnormalities, including pitting.

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Genetic Factors

Nail pitting can run in families, indicating a genetic predisposition to this nail condition.

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Environmental Factors

Exposure to certain chemicals, irritants, or toxins over an extended period may affect nail growth and cause pitting.

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Other Skin Conditions

Certain skin conditions, such as lichen planus or Reiter's syndrome, can manifest in nail changes, including pitting.

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