Hypophosphatémie liée à l’X (XLH)

Overview 

X-linked Hypophosphatemia is a rare genetic disorder that affects the body’s ability to regulate phosphate levels. Low phosphate leads to weak and soft bones (rickets in children and osteomalacia in adults).

XLH usually begins in early childhood and can cause bone deformities, growth delays, and dental issues. Early diagnosis and long-term treatment are essential to improve bone health and quality of life.

Types of X-linked Hypophosphatemia (XLH) Disease

• Classic XLH: Most common inherited form
• Sporadic XLH: Occurs without family history due to new mutation

Symptoms of X-linked Hypophosphatemia (XLH)

• Bowed legs or bone deformities
• Short stature or delayed growth
• Bone pain
• Muscle weakness
• Dental abscesses or tooth problems
• Difficulty walking
• Joint pain

Causes of X-linked Hypophosphatemia (XLH)

• Mutation in the PHEX gene
• X-linked genetic inheritance
• Excess fibroblast growth factor 23 (FGF23) leading to phosphate loss
• Impaired bone mineralization

Complications of X-linked Hypophosphatemia (XLH)

• Bone deformities
• Chronic pain
• Joint problems and arthritis
• Dental issues
• Reduced mobility
• Impact on quality of life

Risk Factors of X-linked Hypophosphatemia (XLH)

• Family history of XLH
• Genetic inheritance (X-linked pattern)
• Early childhood onset

Prevention of X-linked Hypophosphatemia (XLH)

• Genetic counseling
• Early diagnosis in children
• Regular monitoring and treatment