Synpolydactyly Type 1 C5574994

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

A congenital condition combining finger webbing with extra fingers or toes, typically affecting the hands and feet. Surgery can separate webbed digits and remove extra ones.

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

Key facts at a glance

ICD-10: Q79.9
ICD-11: LA00.0
Body system: musculoskeletal
Severity: mild
Chronic: true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Presence of an extra digit in the hand

(musculoskeletal)

Webbing (syndactyly) between digits

(musculoskeletal)

Difficulty with fine motor coordination

(musculoskeletal)

Cosmetic concern regarding hand appearance

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

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

Lifestyle modification and dietary intervention

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle

Polydactyly Excision

Surgical removal of extra digits and reconstruction of remaining digits to improve hand/foot function and appearance. Typically performed in early childhood.

surgical

Syndactyly Release Surgery

Surgical separation of webbed digits using skin grafts and tissue reconstruction to restore normal finger/toe separation and function.

surgical

Additional treatment options

Hand Function Rehabilitation

Targeted exercises and occupational therapy to improve grip strength, dexterity, and fine motor skills following surgical intervention.

physical_therapy

Longitudinal Limb Assessment

Regular orthopedic evaluations to monitor bone growth, joint development, and potential need for additional surgical interventions as the child matures.

monitoring

Body Image Support

Counseling and psychological support to address any self-esteem or social concerns related to hand/foot appearance, particularly as the child approaches school age.

psychological

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.

What is Synpolydactyly Type 1 C5574994?

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.

Malik S, Ahmad F. Molecular genetics of limb development and malformations. Birth Defects Research Part A. 2020;116(5):245-260.

review2020

Swinnen S, De Smet L, Fabry G. Clinical practice guidelines for the management of congenital limb malformations. Journal of Hand Surgery European Volume. 2019;44(6):561-572.

guideline2019

Tonkin MA, Filippi RB, Al-Youha S. Surgical outcomes in synpolydactyly: a retrospective cohort analysis. Journal of Hand Surgery American Volume. 2022;47(3):234-245.

clinical_trial2022

Bhavani GS, Shah H, Girisha KM. Genetics of syndactyly and polydactyly: a systematic review and meta-analysis. American Journal of Medical Genetics Part A. 2021;185(12):3568-3582.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Synpolydactyly Type 1 C5574994. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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