Psoriatic arthritis is an inflammatory type of arthritis that affects people with psoriasis, a chronic skin disorder. It is caused by an autoimmune disorder, which is when the immune system mistakenly attacks healthy tissue in the body. The primary cause of psoriatic arthritis is unknown, but it is believed to be caused by a combination of genetic, environmental, and immunological factors.
Genetics are thought to play a major role in the development of psoriatic arthritis. Certain genetic mutations can increase a person's risk of developing the condition, and having a family history of psoriasis or psoriatic arthritis can make a person more likely to develop it.
Environmental factors, such as stress, certain infections, and even some medications, are believed to contribute to the onset of psoriatic arthritis. In addition, people with psoriasis are more likely to develop psoriatic arthritis if they are exposed to certain environmental triggers, such as cold or dry weather.
Immunological factors, such as an overactive immune system, are also thought to be involved in the development of psoriatic arthritis. The immune system is responsible for attacking and destroying foreign invaders, such as bacteria and viruses, but it can also mistakenly attack healthy tissue in the body, leading to inflammation and joint damage.
In conclusion, the primary cause of psoriatic arthritis is unknown, but it is believed to be caused by a combination of genetic, environmental, and immunological factors. Understanding these potential causes may help researchers and doctors find new ways of treating and preventing the condition.