Psoriasis lesions may be itchy and painful, and can bleed. Some people find that symptoms interfere with everyday life, like work, social events and personal relationships.
In addition to skin symptoms, some psoriasis patients can develop
psoriatic arthritis
, which combines skin symptoms with arthritis symptoms, including joint pain and inflammation (swelling)
For the most part, people with psoriasis function normally. Sometimes people experience low self-esteem because of the psoriasis. Psoriasis is often misunderstood by the public, which can make social interactions difficult. This may lead to emotional reactions such as anxiety, anger, embarrassment and depression.
Psoriatic arthritis affects up to 30 percent of people with psoriasis. The joints and the soft tissue around them become swollen and stiff. Psoriatic arthritis can affect the fingers and toes and may involve the neck, lower back, knees and ankles. In severe cases, it can be disabling and cause irreversible damage to joints.
Psoriasis was previously thought to affect primarily the skin. Our understanding of the co-morbidities that may be associated with the disease has grown significantly.
Patients with psoriasis have an increased risk of cardiovascular disease. They are often obese and have an increased incidence of diabetes, high blood pressure and high cholesterol.