Psoriatic arthritis is a type of inflammatory arthritis that is common in people who have psoriasis, a chronic skin disorder.

Psoriatic arthritis is classified into numerous categories, each with its unique set of symptoms and patterns of joint involvement.

There is no commonly acknowledged classification of psoriatic arthritis into separate “types” as there may be for other illnesses.

However, I can provide you a general summary of frequent psoriatic arthritis patterns:

Symmetric Psoriatic Arthritis:

This type is similar to rheumatoid arthritis in that it has symmetric joint involvement, which means that joints on both sides of the body are afflicted in the same way. It can affect the hands, wrists, knees, and ankles, among other joints.

Asymmetric Psoriatic Arthritis:

Asymmetric psoriatic arthritis affects one side of the body or in an asymmetric pattern. It usually affects fewer joints than symmetric arthritis and is milder.

Distal Interphalangeal Predominant (DIP) Psoriatic Arthritis:

DIP stands for Distal Interphalangeal Predominant. Psoriatic arthritis affects the distal joints of the fingers and toes, which are closest to the nails. It might result in nail alterations as well as joint pain in certain regions.


Spondylitis is an inflammation of the spine and the sacroiliac joints (the points where the spine attaches to the pelvis). It can cause lower back and hip discomfort and stiffness.

Arthritis Mutilans:

Arthritis Mutilans is a severe but uncommon form of psoriatic arthritis that can result in considerable joint destruction and abnormalities. It frequently affects the hands and feet, resulting in a “telescoping” appearance of the fingers.

Here are some further qualities and characteristics of psoriatic arthritis that you may find useful:


Enthesitis is a psoriatic arthritis symptom in which the places where tendons or ligaments join to bones become inflamed. This might cause discomfort, swelling, and tenderness at the places of insertion.


Dactylitis, popularly known as “sausage fingers,” is a swelling of an entire finger or toe that causes it to look bloated and sausage-like. It is a characteristic of psoriatic arthritis.

Nail Changes:

Psoriatic arthritis can cause pitting, ridges, discolouration, and detachment of the nails from the nail bed. Changes in the nails can help distinguish it from other types of arthritis.

Oligoarticular Involvement:

Some people with psoriatic arthritis have only a few joints involved, frequently less than five. This is known as oligoarticular involvement.

Mutilans Deformity:

Mutilans deformity is an uncommon and severe form of psoriatic arthritis that can cause bone resorption and joint abnormalities, especially in the hands and feet.

Extra-articular Manifestations:

Psoriatic arthritis can also cause inflammation in other parts of the body, including the eyes (uveitis) and the digestive tract.

Imaging Subtypes:

In some circumstances, psoriatic arthritis can be classified based on imaging abnormalities such as joint erosions, soft tissue inflammation, and bone alterations.

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