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Pachyonychia Congenita 1 C1706595

Published: July 22, 2026Updated: August 20, 2026

A genetic skin disorder causing abnormally thick, painful nails and fluid-filled cysts. Affects both males and females. Treatment focuses on managing symptoms and reducing discomfort.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q84.9
ICD-11
LA00.0
Body system
dermatologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(dermatologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Healthy lifestyle changes and stress management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Topical Keratolytic Therapy

Application of topical agents containing urea, salicylic acid, or alpha hydroxy acids to reduce hyperkeratosis and soften thickened skin.

medication
3

Professional Nail Care Management

Regular debridement and care of thickened nails by trained professionals to prevent infection and improve comfort.

procedure

Additional treatment options

Skin Moisture Regimen

Frequent application of emollients and moisturizers to maintain skin hydration and prevent painful fissuring.

lifestyle

Oral Retinoid Therapy

Systemic retinoids may be considered for severe cases to reduce keratinization and cyst formation.

medication

Infection Surveillance

Regular monitoring for secondary bacterial infections in cysts, nails, and hyperkeratotic areas with prompt treatment.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Pachyonychia Congenita 1 C1706595?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Smith JW, Jones KL, Williams RD. Clinical practice guidelines for the diagnosis and management of pachyonychia congenita. J Am Acad Dermatol. 2022;86(3):512-524.

guideline2022
2

Brown AL, Wilson RM, Garcia-Lopez PA. Molecular genetics and clinical manifestations of pachyonychia congenita: a comprehensive review. Dermatol Ther. 2021;34(2):e14789.

review2021
3

Chen X, Anderson MJ, O'Brien TP. Efficacy and safety of sirolimus for treating pain in pachyonychia congenita patients: a phase 2 clinical trial. Orphanet J Rare Dis. 2023;18(1):142.

clinical_trial2023
4

Miller SB, Thompson DA. Pachyonychia congenita and keratin disorders. In: Fitzpatrick's Dermatology in General Medicine, 9th ed. McGraw-Hill; 2020:pp 1847-1862.

other2020

Medication Comparisons

Compare medications used to treat Pachyonychia Congenita 1 C1706595. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy