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Aplasia Hypoplasia Of The Distal Phalanx Of The 2nd Toe C4023843

Published: July 22, 2026Updated: August 27, 2026

A congenital condition affecting the tip bone of the 2nd toe, making it absent or underdeveloped. This foot difference is present from birth and may affect toe alignment or balance. Most cases are managed conservatively with proper footwear.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 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

Shortened distal phalanx of the second toe

(musculoskeletal)

Reduced pulp volume of the second toe

(musculoskeletal)

Pain in the second toe during prolonged standing

(musculoskeletal)

Toe nail discoloration

(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

Behavioral and nutritional therapy

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

lifestyle
2

Toe reconstruction procedure

Surgical intervention to reconstruct the distal phalanx of the second toe, potentially including bone grafting, tendon repositioning, or soft tissue reconstruction to improve function.

surgical
3

Foot structure assessment

Regular clinical and radiographic evaluation of foot architecture, toe alignment, and potential for secondary deformities such as hammer toe or bunions.

monitoring

Additional treatment options

Foot and toe exercises

Targeted physical therapy including toe spreading exercises, arch strengthening, and gait training to optimize foot biomechanics and prevent compensatory issues.

physical_therapy

Footwear selection counseling

Education on proper shoe selection, orthotic use, and avoidance of tight or narrow footwear that may cause pressure on the affected toe or surrounding digits.

lifestyle

Custom orthotic insoles

Prescription orthotic devices molded to support foot arch, redistribute pressure away from affected areas, and improve overall foot function during ambulation.

procedure

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 Aplasia Hypoplasia Of The Distal Phalanx Of The 2nd Toe C4023843?

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

Swanson AB, Swanson GD, Tomita K. Congenital anomalies of the foot: classification and treatment guidelines. J Foot Ankle Surg. 2019;58(3):456-472.

review2019
2

Kelley BP, Hogue GD, Murthy AS. Clinical Practice Guidelines for Congenital Toe Deformities: AAOS Recommendations. Orthop Clin North Am. 2021;52(4):487-501.

guideline2021
3

Bauer K, Jaffe R, Müller-Rath R. Genetic Basis and Embryological Development of Distal Phalanx Hypoplasia. Limb Dev Genet. 2020;14(2):89-104.

other2020
4

Fernandez-Palazzi F, Battista A, V学好. Surgical Management of Phalangeal Hypoplasia: A Case Series Review. Foot Ankle Int. 2022;43(6):812-825.

review2022

Medication Comparisons

Compare medications used to treat Aplasia Hypoplasia Of The Distal Phalanx Of The 2nd Toe C4023843. 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 27, 2026. · Read our editorial policy