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Living with Anonychia

A condition present from birth in which fingernails and toenails are abnormal or missing.

Understanding Anonychia

Anonychia is a condition present from birth in which nails are formed abnormally or are missing altogether.

Nail changes range from damaged-looking nails (onychodystrophy) to no nails at all (anonychia). In total anonychia congenita, all fingernails and toenails are absent. It is noticed in newborns and infants and can run in families.

Signs & symptoms

GARD doesn't list specific symptoms for this condition, but its summary describes the nail changes:

  • Nails that look abnormal or damaged (nail dystrophy)
  • Missing nails (anonychia)
  • In some people, all fingernails and toenails absent

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Children's Skin Disease Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which inheritance pattern is likely in our family?
Would genetic testing help clarify the cause of the nail changes?
How can we protect the fingertips and toes when nails are missing?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant, Autosomal Recessive

GARD says changes in genes (also called variants) cause anonychia. It may be inherited in a dominant way (one changed copy of the gene) or a recessive way (a changed copy from each parent).

GeneticSkin

Also known as: absent nails; ann - anonychia; aplastic nails; congenital absent nails; isolated anonychia; isolated congenital anonychia

Patient organizations

Broader rare-disease groups

Source: NIH GARD · AnonychiaGARD ID 10048 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Anonychia.

Explore the Anonychia blog

Explore research for Anonychia

Explore actively recruiting Anonychia studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Anonychia with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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