Date and age range defining. Generation X is the demographic cohort following the postâWorld War II baby boom, representing a generational change from the baby boomers, but there is debate over what this means because the end date of the baby boomer generation is disputed.
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.
Psoriasis is a commonly inherited genetic disorder. It is chronic and causes the skin to form inflamed and edematous (or fluid filled) symmetric patches with scales that are silvery-white. Psoriasis also causes a painful or itchy rash on areas such as the scalp, trunk, and limbs, and can also damage nails and joints. This rash tends to become more intense as time progresses without treatment for the disease, resulting in deterioration of pre-existing rashes and reddening of skin in small patches.