Wrist drop causes

Causes are:

• Injury
  • Crutch palsy, caused by improper use of crutches
  • Fracture of the humerus (upper arm bone)
  • Long-term or repeated constriction of the wrist (for example, from wearing a tight watch strap)
  • Pressure caused by hanging the arm over the back of a chair (Saturday night palsy if caused by drinking too much alcohol and falling asleep in that position)
  • Pressure to the upper arm from arm positions during sleep or coma
  • Pinching of the nerve during deep sleep, such as when a person is intoxicated
• In some cases, no cause can be found.

Template:WikiDoc Sources