Osteomalacia

Osteomalacia is softening of bone in adults caused by impaired mineralization, most commonly from vitamin D deficiency. Unlike osteoporosis (loss of bone density), osteomalacia involves defective bone formation.

Table of Contents

Quick Facts

  • ICD-10: M83
  • Main cause: Vitamin D deficiency

Symptoms

  • Diffuse bone pain
  • Muscle weakness, especially in hips and thighs
  • Difficulty climbing stairs or rising from a chair
  • Waddling gait
  • Stress fractures, especially of the femur or pelvis

Treatment

  • Vitamin D replacement (high-dose initially, maintenance after)
  • Calcium supplementation
  • Address underlying causes (malabsorption, kidney/liver disease)
  • Sun exposure

Related Conditions

Vitamin D Deficiency

Main cause

 Rickets

Childhood equivalent

 Osteoporosis

Different but related
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • Endocrine Society. Vitamin D Resources.