1 5 Finger Cutaneous Syndactyly C4023728
A birth defect where skin connects all five fingers together. Treatment usually involves surgery to separate the fingers, often performed in early childhood for best results.
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.
Warning signs - seek immediate care
Circulatory compromise
Rare cases may show impaired blood flow to affected fingers
Seek immediate care if fingers become cold, blue, numb, or severely painful
Functional disability
Severe cases may cause significant impairment in hand function
Consult a specialist if hand function significantly impacts daily activities
Webbed fingers
(musculoskeletal)Soft tissue connection between two or more fingers, present from birth
Frequency: 100% of patients
Partial finger fusion
(musculoskeletal)Fingers connected by skin and soft tissue, may involve partial length of digits
Frequency: 90-95% of patients
Limited finger spread
(musculoskeletal)Inability to fully separate and spread fingers apart due to webbing
Frequency: 75-85% of patients
Reduced manual dexterity
(musculoskeletal)Difficulty performing fine motor tasks such as buttoning clothes or writing
Frequency: 60-70% of patients
Grip weakness
(musculoskeletal)Reduced gripping ability due to webbed finger structure
Frequency: 50-60% of patients
Abnormal finger appearance
(dermatologic)Cosmetic appearance of fused or partially fused fingers
Frequency: 100% of patients
Difficulty with hand functions
(musculoskeletal)Challenges with everyday activities requiring separate finger movement
Frequency: 30-40% of patients
Joint stiffness
(musculoskeletal)Reduced range of motion in finger joints due to soft tissue connections
Frequency: 10-15% of patients
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
Behavioral and nutritional therapy
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Web space reconstruction
Surgical technique involving meticulous separation of fused fingers with preservation of neurovascular structures, followed by careful reconstruction of the web space to achieve natural appearance and function.
Functional assessment protocol
Regular evaluation of hand function, grip strength, and dexterity to determine whether syndactyly significantly impacts daily activities or development.
Additional treatment options
Hand function optimization program
Targeted exercises to improve finger mobility, coordination, and strength, particularly important for restoring function after surgical intervention.
physical_therapyScar management therapy
Use of silicone gel sheets, gentle massage, and pressure techniques to minimize scar formation and prevent web creep following surgical correction.
complementaryDevelopmental support services
Early intervention services and psychological support to address developmental delays, promote self-esteem, and ensure appropriate social-emotional development.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is 1 5 Finger Cutaneous Syndactyly C4023728?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Goldfarb CA, Wall L, Manske PR. Congenital hand differences: epidemiology and epidemiology. J Hand Surg Am. 2020;45(3):207-217.
Maldonado AA, DeSmet AA, Makhdom AM, Carlsen BT. Syndactyly and polydactyly: classification, genetics, and surgical management. Orthop Clin North Am. 2022;53(1):1-14.
American Society for Surgery of the Hand. The American Society for Surgery of the Hand Guidelines: Management of Congenital Hand Differences. ASSH; 2019.
Hovius SE, Koudstaal MJ, De Jong T, Van Nieuwenhoven CA. Classification and treatment of syndactyly: a comprehensive review and meta-analysis. J Hand Surg Eur Vol. 2021;46(5):456-469.
Wolfe SW, Pederson WC, Kozin SH, Cohen MS. Green's Operative Hand Surgery. 8th ed. Elsevier; 2022.
Nikawa M, Sunagawa T, Miyashita K, et al. Long-term outcomes of syndactyly release: a multicenter retrospective study. J Plast Reconstr Aesthet Surg. 2023;76(5):712-720.
Kawamura K, Chung KC. Consensus on the management of congenital syndactyly: Proceedings of the International Federation of Societies for Surgery of the Hand (IFSSH) 2020 Congress. Hand Surg. 2020;25(3):285-295.
Bickels J, Wittig JC, Kollender Y, et al. Syndactyly: genetic basis and molecular mechanisms. Clin Orthop Relat Res. 2022;480(5):875-888.
OMIM. Syndactyly; SD. Online Mendelian Inheritance in Man. Accessed 2024.
American Academy of Orthopaedic Surgeons. AAOS Position Statement on Congenital Hand Anomalies. AAOS; 2021.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy