Complex Regional Pain Syndrome

When people apply for short-term or long-term disability benefits, it can be as a result of a physical or psychological injury or illness. Many people are unable to continue working as a result of psychological illness such as depression or as a result of a chronic pain disorder.

complex regional pain

This blog post will look at complex regional pain syndrome (CRPS). Complex regional pain syndrome can interfere with a person’s daily activities and ability to complete the essential duties of his or her job.


It is well known that there is a strong connection between chronic pain conditions and psychological health. For example, people with chronic pain conditions may also experience symptoms of depression and depression, and anxiety and stress all affect the body’s ability to cope with pain. When this happens, the pain experience can be more intense. Intense pain can also cause a person to experience symptoms of fatigue and low energy which makes it difficult to perform their usual activities.

What is complex regional pain syndrome?

According to a fact sheet from the National Institute of Neurological Disorders and Stroke, it is a chronic pain condition that typically affects only one limb (an arm, leg, hand or foot) after an injury. It can be a progressive condition. CRPS is characterized by sustained or excessive pain and changes in skin colour, temperature and/or swelling in the affected area. Symptoms can vary in intensity and duration and in more severe cases, individuals may not achieve recovery.

What are the symptoms?

The most common symptom is prolonged severe pain that may be constant, and it has been described as burning, a pins and needles sensation, or a squeezing sensation. The pain may spread to the entire arm or leg even though the injury may have only involved a finger or toe. Other symptoms include changes in skin temperature, joint stiffness, problems with muscle movement.

What are the causes?

It is not known what the exact cause of complex regional pain syndrome is, but what seem to be common triggers include surgery or minor procedures, having a limb being in a cast, fractures, sprains, strains or soft tissue injury. While there is no specific test that can confirm CRPS, the patient’s medical history, signs and symptoms are taken into consideration. Testing also may be used to help rule out other conditions such as arthritis, Lyme disease or a vein issue. Doctors will be able to distinguish CRPS from something else because the telling feature of it complex regional pain syndrome is an injury to the affected area.

How is it diagnosed?

To diagnose complex regional pain syndrome, doctors use x-rays, MRIs or bone scans to detect mineral loss or increased circulation in the affected joints or electro-diagnostic testing to detect nerve damage or abnormal nerve activity.


As lawyers practicing in the area of long-term disability law, we recognize how chronic pain can render a person unable to work as pain can interfere with various aspects of a person’s life.

We offer a free initial consultation that can be arranged at a date and time of your choosing and at your convenience.

Recent posts from our Knowledge Centre

Slushy, icy sidewalk in an urban area, showing dangerous winter conditions that could cause a slip.
By Dev Ops April 28, 2025
Injured in a slip and fall? Learn about liability, evidence, and how courts assess negligence in Ontario. Contact a slip and fall lawyer for guidance today.
A worried man sitting at a desk, carefully reading a disability benefits denial letter.
By Dev Ops April 22, 2025
Denied disability benefits due to lack of medical evidence? Learn how to strengthen your claim with proper documentation, appeal a denial, and get legal help.
A concerned employee sits at a desk, reviewing a pay stub with a frustrated expression.
By Dev Ops April 14, 2025
Are you facing unpaid wages or overtime issues in Ontario? Learn about your legal rights and how an employment lawyer can help you resolve wage disputes.
A pedestrian crossing the street as a car approaches, capturing a potential accident scene in motion
By Dev Ops April 7, 2025
Injured in a pedestrian accident with a motor vehicle? Learn how to determine fault, file a claim, and secure the compensation you deserve under Ontario’s car accident laws.
Show More
Slushy, icy sidewalk in an urban area, showing dangerous winter conditions that could cause a slip.
By Dev Ops April 28, 2025
Injured in a slip and fall? Learn about liability, evidence, and how courts assess negligence in Ontario. Contact a slip and fall lawyer for guidance today.
A worried man sitting at a desk, carefully reading a disability benefits denial letter.
By Dev Ops April 22, 2025
Denied disability benefits due to lack of medical evidence? Learn how to strengthen your claim with proper documentation, appeal a denial, and get legal help.
A concerned employee sits at a desk, reviewing a pay stub with a frustrated expression.
By Dev Ops April 14, 2025
Are you facing unpaid wages or overtime issues in Ontario? Learn about your legal rights and how an employment lawyer can help you resolve wage disputes.
A pedestrian crossing the street as a car approaches, capturing a potential accident scene in motion
By Dev Ops April 7, 2025
Injured in a pedestrian accident with a motor vehicle? Learn how to determine fault, file a claim, and secure the compensation you deserve under Ontario’s car accident laws.
top 100 canada law blog award
  • This blog is for informational purposes only and is not meant to substitute legal advice. Please read our disclaimer for further information.
  • All of our lawyers are licensed by The Law Society of Upper Canada
  • Office in Toronto and able to represent people in the province of Ontario