Carpal tunnel syndrome risk factors

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Dheeraj Makkar, M.D.[2] Associate Editor(s)-in-Chief: Joseph Nasr, M.D.[3]

The most important risk factors for developing carpal tunnel syndrome include: Anatomic factors, age, sex, inflammatory conditions, obesity, alterations in the balance of body fluids, other medical conditions

The most important risk factors for developing carpal tunnel syndrome include:

• Anatomic factors
  • Wrist fracture
  • Wrist dislocation
  • Wrthritis
  • People with smaller carpal tunnels may be more likely to have carpal tunnel syndrome.
• Age
  • Carpal tunnel syndrome (CTS) most commonly affects adults between 40 and 60 years of age, with peak prevalence typically reported in the mid-40s to mid-50s.
  • It is uncommon in children and young adults, except in cases with congenital anomalies, trauma, or systemic conditions (e.g., mucopolysaccharidoses).
  • Prevalence increases with age due to cumulative repetitive strain, degenerative wrist changes, and higher incidence of comorbidities such as diabetes, hypothyroidism, and arthritis.
  • CTS is more common in women, especially during perimenopausal years and in pregnancy, where hormonal and fluid balance changes contribute to median nerve compression.
• Sex 
  • Women, especially those taking birth control pills, going through menopause, or taking estrogen, have the highest risk of developing CTS
• Nerve-damaging conditions
  • Chronic illnesses such as diabetes
• Inflammatory conditions
  • Rheumatoid arthritis
• Obesity
• Alterations in the balance of body fluids
  • Pregnancy
  • Menopause
• Other medical conditions
  • Kidney failure
    • Hemodialysis:^[1][2][3][4]
      • Carpal tunnel syndrome is significantly more common in patients undergoing long-term hemodialysis.
      • Risk increases with dialysis duration and is strongly associated with dialysis-related β2-microglobulin amyloid deposition within the carpal tunnel.
      • Venous hypertension, subclinical access-related ischemia, and altered fluid dynamics from arteriovenous access may exacerbate median nerve compression.
      • Symptoms are typically limited to the median nerve distribution, worsen at night, and lack ischemic features, helping differentiate from access-related hand ischemia.
  • lupus
  • Hypothyroidism
  • Multiple sclerosis
• Workplace factors 
  • Working with vibrating tools
  • Assembly line
  • Computer use