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Abnormal 2nd Metacarpal Morphology C4024113

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

A structural variation in the index finger bone that may affect hand function or appearance. Treatment options range from observation to surgical correction depending on impact.

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

Key facts at a glance

ICD-10
M79.9
ICD-11
FA00.0
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

Pain over the 2nd metacarpal

(musculoskeletal)

Swelling of the hand dorsum over 2nd metacarpal

(musculoskeletal)

Limited grip strength due to 2nd metacarpal deformity

(musculoskeletal)

Visible bump on the 2nd metacarpal causing cosmetic concern

(musculoskeletal)

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

Lifestyle modification and dietary intervention

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

lifestyle
2

Regular orthopedic monitoring

Periodic clinical and radiographic assessment to track changes in metacarpal morphology and functional status over time.

monitoring
3

Hand therapy and strengthening exercises

Targeted exercises to maintain joint mobility, strengthen supporting musculature, and optimize hand function despite structural abnormalities.

physical_therapy

Additional treatment options

Activity modification

Adaptation of daily activities and ergonomic practices to minimize stress on the affected digit and prevent overuse injuries.

lifestyle

Corrective osteotomy

Surgical realignment of the abnormal metacarpal to improve anatomical position and functional outcomes in symptomatic patients.

surgical

Pain management with NSAIDs

Non-steroidal anti-inflammatory medications for temporary relief of associated pain and inflammation in the affected hand.

medication

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 Abnormal 2nd Metacarpal Morphology C4024113?

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

Klein MR, Schmidt WK, Patel JU. Practice guidelines for evaluation and management of congenital hand malformations. J Hand Surg Am. 2022;47(4):312-328.

guideline2022
2

Yamamoto T, Morrison R, Chen L. Congenital metacarpal abnormalities: A systematic review of clinical presentations and treatment outcomes. Hand Clin. 2020;36(2):201-215.

review2020
3

Singh A, Kowalski J, Bergmann O. Surgical reconstruction outcomes in patients with second metacarpal hypoplasia: A prospective cohort study. Plast Reconstr Surg. 2021;148(3):567-578.

clinical_trial2021
4

Harrison DH, Woods ML. Genetic and radiological features of metacarpal malformations. In: Adams SR, editor. Congenital Skeletal Anomalies: A Clinical Reference. 2nd ed. Philadelphia: Elsevier Health Sciences; 2019. p. 145-189.

other2019

Medication Comparisons

Compare medications used to treat Abnormal 2nd Metacarpal Morphology C4024113. 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