Seventy percent of people who develop<unk>  first show signs of psoriasis on the skin, 15 percent develop skin psoriasis and arthritis at the same time, and 15 percent develop skin psoriasis following the onset of<unk> .<unk>  can develop in people who have any level severity of<unk>  skin disease, ranging from mild to very severe.<unk>  tends to appear about 10 years after the first signs of psoriasis. For the majority of people, this is between the ages of 30 and 55, but the disease can also affect children. The onset of<unk>  symptoms before symptoms of skin psoriasis is more common in children than adults. More than 80% of patients with<unk>  will have<unk>  nail lesions characterized by nail pitting, separation of the nail from the underlying nail bed, ridging and cracking, or more extremely, loss of the nail itself (onycholysis). Enthesitis is observed in 30 to 50% of patients and most commonly involves the plantar fascia and Achilles’ tendon, but it may cause pain around the patella, iliac crest, epicondyles, and supraspinatus insertions Men and women are equally affected by this condition. Like psoriasis,<unk>  is more common among Caucasians than African or Asian people.
Psoriatic arthritis
Rheumatoid arthritis
Reactive arthritis
Inflammatory arthritis
Juvenile idiopathic arthritis
Post-traumatic arthritis
Enteropathic arthropathy
Oligoarthritis