& 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.
Psoriatic arthritis: A form of arthritis that affects some people who have psoriasis, a condition that features red patches of skin topped with silvery scales. Most people develop psoriasis first and are later diagnosed with psoriatic arthritis, but the joint problems can sometimes begin before skin lesions appear.