DIP Psoriatic Arthritis
There are five kinds of psoriatic arthritis. They are symmetric psoriatic arthritis, spondylitis, arthritis mutilans, asymmetric psoriatic arthritis and DIP psoriatic arthritis.
DIP psoriatic arthritis is one of the five types of psoriatic arthritis. DIP stands for distal interphalangeal predominant.
DIP psoriatic arthritis affects mainly the small joints in your toes and fingers that are closest to your nails. Distal interphalangeal predominant is sometimes confused with osteoarthritis, which results in deterioration of bone spurs, joint cartilage and tissues at your joints.
DIP psoriatic arthritis occurs in about 5% of the cases of psoriatic arthritis. It is evidenced by stiffness and inflammation in the joints that are nearest to the ends of your toes and fingers. Nail changes are often marked with distal interphalangeal predominant.
Signs, symptoms and causes of DIP psoriatic arthritis
The exact cause of DIP psoriatic arthritis has not yet been discovered. Scientists believe that DIP psoriatic arthritis may result from a combination of genetic, immune and environmental factors.
There are some signs and symptoms that may be an indication of DIP psoriatic arthritis. Some of these are:
- A reduction in the range of motion in your affected joints
- Detachment of your fingernails or toenails
- A sausage-like swelling or appearance of your toes and fingers that is known as dactylitis
- Small depressions (pitting) of your nails
- Your affected joints being painful, swollen and stiff
- Your affected joints being red or warm to the touch
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