& legs: 1  Serious condition of the kidney, heart, liver or blood vessels. 2  Varicose veins or inflammation of the veins (phlebitis). 3  Trauma, such as an ankle sprain. 4  Poor diet that's high in salt and carbohydrates. 5  Sodium retention. 6  Allergic reactions. 7  Neuromuscular disorders. 8  Birth control pills.
What Is Psoriatic Arthritis? Psoriatic arthritis is a form of arthritis (joint inflammation) that can occur in people who have the skin disease psoriasis. Psoriasis is a common condition characterized by scaly red and white skin patches. Psoriatic arthritis can affect any joint in the body, including the spine.
Causes. Psoriatic arthritis occurs when your body's immune system begins to attack healthy cells and tissue. The abnormal immune response causes inflammation in your joints as well as overproduction of skin cells.any people with psoriatic arthritis have a family history of either psoriasis or psoriatic arthritis. Researchers have discovered certain genetic markers that appear to be associated with psoriatic arthritis.