What is rheumatoid arthritis

What is Rheumatoid Arthritis and what causes it?

Rheumatoid Arthritis (RA) is a long-term condition that causes swelling, pain and stiffness in the joints. It occurs when your body's immune system attacks the joints between your bones, usually affecting the hands, feet and wrists.

Symptoms and signs of Rheumatoid Arthritis

Rheumatoid Arthritis usually starts slowly and affects joints symmetrically, i.e. the same joints on both sides of the body. Symptoms include:

Sore hand icon

Discomfort and swelling in the fingers, wrists or balls of the feet

Waking up icon

Feeling stiff when you wake up in the morning

Joint pain icon

Joints feel hot, swollen and painful

Fever icon

Fever, fatigue, weight loss and decreased appetite

For some people, the disease develops very rapidly and there may be a sudden onset of pain and swelling in a lot of joints.

RA can be unpredictable in many sufferers. Symptoms may come and go with no particular pattern and you may have flares. This is when joints are more inflamed and painful than at other times.

The pain, stiffness and swelling of Rheumatoid Arthritis can make it difficult to perform daily activities such as:

  • Getting in and out of bed
  • Bathing and drying yourself
  • Lifting a glass to your mouth
  • Tying shoelaces or doing buttons
  • Turning taps on and off
  • Walking outdoors on flat ground
  • Running errands or doing chores

What causes Rheumatoid Arthritis?

The exact cause is unknown, but Rheumatoid Arthritis may result from a combination of factors, including:

Genetic predisposition icon

Genetic predisposition

Environmental influence icon

Environmental influences

Immune system icon

Immune system

To prevent the progression of joint damage, proper diagnosis and treatment are essential. If you're experiencing the symptoms listed above, talk to your GP who may refer you to a rheumatologist - a doctor who specialises in arthritis, musculoskeletal pain conditions and autoimmune diseases.

Discussion guide

Talk with your doctor

We’ve put together a discussion guide that you can take along to your rheumatologist visit in order to share your symptoms.

Download now

References: 1. Health Navigator Rheumatoid Arthritis www.healthnavigator.org.nz/health-a-z/r/rheumatoid-arthritis/ Accessed September 2021. 2. Arthritis New Zealand www.arthritis.org.nz/forms-of-arthritis/rheumatoid-arthritis/ Accessed September 2021. 3. Humira: What is Rheumatoid Arthritis. https://humira.co.nz/rheumatoid-arthritis/what-is-rheumatoid-arthritis/ Accessed September 2021.

NZ-RNQR-210024. ABB2042. Date prepared March 2023.