What is psoriatic arthritis?
Arthritis is a painful condition that causes swelling and stiffness in your joints. The condition can be caused by several factors, depending on your type of arthritis. Psoriatic arthritis, like rheumatoid arthritis, is caused by your immune system attacking healthy cells.
Psoriatic arthritis occurs simultaneously with a common skin condition called psoriasis. You may notice the symptoms of psoriasis (red, scaly rashes) before or after you start to have psoriatic arthritis symptoms.
Psoriatic arthritis can show itself in a couple of different ways, including:
- Pain and swelling in your fingers or toes
- Joint swelling in just one hand or foot on one side of your body
- Deformities in your joints
- Pain and swelling in your lower back
Psoriatic arthritis might look like other types of arthritis, but requires different treatments. Your doctor will need to do a thorough exam, including a blood test, to determine the cause of your arthritis.