A risk factor is something that increases your likelihood of
getting a disease or condition. It is possible to develop
psoriasis with or without the risk factors listed below. In
fact, most cases of psoriasis are not associated with any of the
risk factors listed below. However, the more risk factors you
have, the greater your likelihood of developing psoriasis. If
you have a number of risk factors, ask your doctor what you can
do to reduce your risk. Risk factors include: There is a strong
genetic component to psoriasis. In about one third of all cases,
there is a family history of psoriasis. Medical conditions that
are most likely to trigger psoriasis include: Stress/emotional
disorders: Stress, suppressed anger, anxiety, depression, or
other emotional disorders often trigger psoriasis outbreaks.
Infection: Psoriasis frequently flares up after upper
respiratory infections, such as tonsillitis, sinusitis, or strep
throat. Skin injuries: Psoriasis may develop at the site of a
previous skin injury or mild abra