3 M Syndrome C1848862
A rare genetic syndrome causing severe short stature and distinctive facial features. Affects bone development. Treatment involves growth monitoring and orthopedic care.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Failure to thrive in infancy
Inadequate weight gain and growth during the first year of life despite adequate nutrition.
Seek immediate pediatric evaluation if infant shows poor weight gain or growth failure.
Developmental hip dysplasia
Abnormal development of the hip joint that may lead to dislocation or improper formation.
Seek immediate orthopedic evaluation if hip pain, limp, or asymmetric leg movement is noticed.
Intrauterine growth restriction
(constitutional)Reduced fetal growth during pregnancy, resulting in low birth weight and length.
Frequency: 80-90% of patients
Severe short stature
(musculoskeletal)Significant short stature that becomes more apparent in childhood and persists into adulthood.
Frequency: 80-90% of patients
Distinctive facial features
(constitutional)Triangular face with prominent forehead, full cheeks, pointed chin, and relatively large ears.
Frequency: 80-90% of patients
Slender long bones
(musculoskeletal)Abnormally thin and elongated long bones in the arms and legs, giving a disproportionate appearance.
Frequency: 60-70% of patients
Joint hypermobility
(musculoskeletal)Excessive flexibility and range of motion in joints due to ligamentous laxity.
Frequency: 50-60% of patients
Vertebral anomalies
(musculoskeletal)Abnormalities in the shape or structure of the spinal vertebrae, including platyspondyly.
Frequency: 30-40% of patients
Scoliosis
(musculoskeletal)Lateral curvature of the spine that may develop during childhood or adolescence.
Frequency: 10-20% of patients
Normal intellectual development
(neurologic)Most individuals have normal cognitive development and intelligence despite physical manifestations.
Frequency: >90% 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
Growth Hormone Therapy
Recombinant growth hormone therapy can promote linear growth in patients with 3-M syndrome who demonstrate growth hormone insufficiency or sensitivity issues.
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Regular Endocrine and Skeletal Assessment
Comprehensive monitoring of growth velocity, bone age, and endocrine function guides treatment decisions and identifies complications early.
Additional treatment options
Orthopedic Intervention for Skeletal Abnormalities
Surgical correction of vertebral anomalies, hip dysplasia, or other skeletal complications associated with 3-M syndrome when conservative management is insufficient.
surgicalMusculoskeletal Rehabilitation Program
Targeted physical therapy maintains joint mobility, strengthens supporting musculature, and addresses postural concerns common in skeletal dysplasias.
physical_therapyPsychosocial Support and Counseling
Addressing body image concerns, social challenges, and emotional well-being through age-appropriate counseling and support groups for patients and families.
psychologicalMedication Comparisons
Compare medications used to treat 3 M Syndrome C1848862. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 25, 2026. · Read our editorial policy