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What Are Repetitive Stress Injuries?

Millions of People in the United States Are Affected


Updated June 27, 2014

Repetitive Stress Injuries Explained

Repetitive stress injuries include a large group of conditions that primarily affect the soft tissues, including the nerves, tendons, ligaments, and muscles. Repetitive stress injuries are caused by repeated motions performed in the course of normal work or daily activities. Repetitive stress injuries are also called Cumulative Trauma Disorders, Repetitive Motion Disorders, and Overuse Syndromes.

Repetitive stress injuries can include:

Causes of Repetitive Stress Injuries

Repetitive stress injuries are caused by:

  • too many uninterrupted repetitions of an activity or motion
  • unnatural or awkward motions such as twisting the arm or wrist
  • overexertion
  • incorrect posture
  • muscle fatigue

Common Sites of Repetitive Stress Injuries

Repetitive stress injuries occur most commonly in the:

Repetitive stress injuries can also affect the:

Signs and Symptoms of Repetitive Stress Injuries

Repetitive stress injuries are often characterized by:

  • pain
  • tingling
  • numbness
  • visible swelling or redness of the affected area
  • loss of flexibility and strength of the affected area

Some people may have no visible sign of injury, although they may find it hard to perform usual tasks. But, over time, repetitive stress injuries can cause temporary or permanent damage to the soft tissues in the body, such as the:

  • muscles
  • nerves
  • tendons
  • ligaments

Repetitive stress injuries can also cause compression of nerves or tissue.

Who Is Affected Most By Repetitive Stress Injuries?

Typically, repetitive stress injuries affect people who perform repetitive tasks, such as:

  • assembly line work
  • meatpacking
  • sewing
  • playing musical instruments
  • computer work
  • carpentry
  • gardening
  • tennis

Treatment Options for Repetitive Stress Injuries

Treatment for repetitive stress injuries usually includes reducing or stopping the motions that cause symptoms. Repetitive stress injury treatment options can also include:

Some employers have developed ergonomic programs to help workers adjust their pace of work and arrange equipment to minimize problems.

Prognosis for Repetitive Stress Injuries

Most individuals with repetitive stress injuries recover completely and can avoid re-injury by:

  • changing the way they perform repetitive movements
  • changing the frequency with which they perform them
  • changing the amount of time they rest between movements.

Without treatment, repetitive stress injuries may result in permanent injury and complete loss of function in the affected area.


NINDS. Repetitive Motion Disorders Information Page.

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