Change in nail shape

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Yukiko Ueda

Medically Reviewed By:

Yukiko Ueda, MD


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People with these symptoms also use Ubie's symptom checker to find possible causes

  • Indentations on nail

  • Fingernails abnormality (shape)

  • Abnormal fingernails (shape)

  • Nail depressions

  • Abnormalities in nail shape

  • My nails are a weird shape

  • Dents on nail

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Content updated on May 23, 2022


Nail shape abnormalities describes a change in the nail shape. These changes may include becoming spoon shaped, curling and exessive curving.

When to See a Doctor

Seek professional care if you experience any of the following symptoms

  • Change in nail shape

Possible Causes

  • Ingrown toenail

    A condition where the corner of a toenail curves and grows into the skin, causing pain and swelling. Risk factors include obesity, small-sized shoes and cutting the nails wrongly.

  • Alopecia areata

    An autoimmune disease where the body's immune system attacks its own hair roots. This causes areas of hair loss which are usually patchy and round in shape.

  • Candidiasis (oral, hands and feet)

    Normal human skin contains bacteria and fungi. Candidiasis happens when the fungus overgrows and invades the skin. Risk factors include warm moist environments, and a weakened immune system.

  • Psoriasis (except for pustular psoriasis)
  • Pityriasis rubra pilaris

  • Lichen planus (including nails)
  • Spoon nails (koilonychia)

  • Amyloidosis
  • Green nail syndrome

  • Malignant melanoma (including nails)

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Has your nail shape changed?

  • Do you have nail pain?

  • Has your nail color changed?

  • Do you have vertical bleeding or red lines under your nails?

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Medically Reviewed By:

Yukiko Ueda, MD


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