Introduction
Psoriatic arthritis is a chronic autoimmune condition that affects the joints and the skin. It is estimated that around 30% of people with psoriasis will develop psoriatic arthritis. The symptoms of psoriatic arthritis can vary from person to person, but common signs include joint pain, stiffness, and swelling.
Types of Arthritis
There are several different types of arthritis, including osteoarthritis, rheumatoid arthritis, gout, and psoriatic arthritis. Osteoarthritis is the most common form of arthritis and is often caused by wear and tear on the joints. Rheumatoid arthritis is an autoimmune condition that causes inflammation in the joints. Gout is a type of arthritis that results from the build-up of uric acid crystals in the joints.
Distinguishing Features of Psoriatic Arthritis
One of the key features of psoriatic arthritis is the presence of both joint pain and skin symptoms. People with psoriatic arthritis may experience swelling in the fingers and toes, as well as nail changes such as pitting or discoloration. In some cases, psoriatic arthritis can also affect the spine, leading to symptoms such as back pain and stiffness.
Diagnostic Tests
In order to differentiate between psoriatic arthritis and other types of arthritis, healthcare providers may use a combination of physical exams, imaging tests, and blood tests. X-rays and MRI scans can help to identify joint damage and inflammation, while blood tests may reveal markers of autoimmune activity.
Treatment Options
The treatment of psoriatic arthritis may involve a combination of medications, physical therapy, and lifestyle changes. Nonsteroidal anti-inflammatory drugs (NSAIDs) and disease-modifying antirheumatic drugs (DMARDs) are commonly used to manage joint pain and inflammation. In severe cases, biologic therapies may be prescribed to target specific molecules involved in the inflammatory process.