The most common type of psoriasis is plaque psoriasis. Nearly 90 % of the people who live with psoriasis have this form of the condition. Plaque psoriasis presents as dry, red, raised lesions covered in silvery white scales that may shed. It usually appears on the elbows, knees, scalp, or lower back, although it can be found anywhere on the body, including the genitals and inside the mouth.
A serious form of psoriasis resulting in the appearance of pustules on the skin that can erupt and leave a reddish appearance.
Guttate psoriasis usually appears suddenly, often following a bacterial infection. Spreading rapidly over the body the condition is characterised by small red scales.
A psoriasis affecting the hands and feet that can appears as dry and thickened skin with a silvery appearance.
Psoriatic Arthritis affects approximately 5–7 % of psoriatics and is more frequent in patients with psoriatic nails or pustular psoriasis. In many cases, the arthritis may be present for years before any skin symptoms appear. The symptoms include fatigue, morning stiffness, articular pain and swelling.
Flexural / Inverse Psoriasis (also known as Seborrheic Psoriasis)
Only found in the folds and creases of the body, flexural psoriasis tends to be more moisture than other forms of the condition and can be quite uncomfortable as a result (no flaking).
The least common form of psoriasis results in inflammation, itching, and a painful red rash that may peel and often covers the entire body. Erythrodermic psoriasis can be triggered by severe sunburn, withdrawal from systemic treatment, or another form of psoriasis that is not well managed. People with erythrodermic psoriasis should seek immediate medical attention because it can lead to dangerous protein and fluid loss, swelling, infection, or pneumonia, and may even require hospitalization.
A rare form of the disease, psoriasis annularis produces a distinct circular lesion.