What is arthritic psoriasis? Arthritic psoriasis is also known as psoriatic arthritis. Some scholars studied the onset of 180 cases of psoriatic arthritis and found that skin damage preceded arthritis in 65% of cases, while arthritis preceded skin damage in l9% of cases and both occurred simultaneously in l6% of cases. The peak incidence of psoriatic arthritis is between the ages of 40 and 60. What are the symptoms of arthritic psoriasis? Patients with arthritic psoriasis may have rheumatoid arthritis symptoms in addition to skin lesions, and joint symptoms have a parallel relationship with psoriatic lesions. The disease often occurs secondary to psoriasis or is seen in conjunction with pustular psoriasis or erythrodermic psoriasis; in about 10% of patients, psoriasis appears after arthritis. Any joint can be involved after the onset of the disease. It can also be seen in the spine, but it is more common in small joints such as the hands, wrists and feet, especially the end joints of the fingers and toes. The affected joints may show redness, swelling, pain, fluid accumulation in the major joints, redness and swelling of the surrounding skin, and gradual restriction of joint movement. Most of these patients have nail damage and are often accompanied by systemic symptoms such as high fever and anemia. Laboratory tests may show accelerated blood sedimentation, but rheumatoid factor is often negative. There are three main causes of this type of psoriasis: Psoriasis arthritis is a more severe form of non-common psoriasis. 1. Immunity: Due to the increased globulin in psoriasis patients, the levels of other immunoglobulins are inconsistent. Some report an increase in both IgM and IgA, while others report a decrease in IgM and an increase in IgC. In contrast, when psoriatic arthritis flare-ups occur today, immune complexes are found in the blood in 60 percent of cases. 2. Environment: Streptococci and staphylococci can be detected within the psoriatic lesions. Many reports have found the presence of antibodies within the blood, and the higher the antibody value for those who have arthritis, thus suspecting that the onset of arthritic psoriasis is related to bacterial infection. 3, genetic: psoriasis itself has a genetic tendency. According to statistics, about 6.4% of the relatives of patients with psoriasis suffer from psoriasis, while only 2% of the general population suffers from psoriasis. The harmfulness of arthritic psoriasis: arthritic psoriasis develops in the joints, and it leads to joint damage and finally inconvenience, and in serious cases it becomes a disability. Most patients in the clinic first develop psoriatic lesions, and then develop arthritic symptoms, joint redness and pain, joint deformation, and dysfunction. In addition, arthritic psoriasis can also produce many complications, such as internal organ damage, rheumatic heart disease, ulcerative colitis, rheumatic heart disease and other hazards. In addition to the hazards of psoriasis itself, rheumatoid arthritis symptoms occur in arthritic psoriasis. Therefore, patients should go to a regular hospital for diagnosis and treatment as early as possible.