How common is Psoriasis?

January 24, 2025

Psoriasis is a chronic skin condition that affects millions of people globally. It is a well-known disease but many people are unaware of the real extent of it and the problems it causes for those who have it. So in this blog, we’re going to look at the numbers, the factors behind the rise, and the effects on the global population.

Learn about the different Types of Psoriasis.

What is Psoriasis?

Psoriasis is an autoimmune condition that generally involves the skin but can also have an effect on the joints in the related form of psoriatic arthritis. This happens when the immune system speeds up the lifecycle of the skin cells, which pile up on the surface. As a result, they lead to scaly patches, redness and inflammation. It is not contagious, but it can be a very physically and emotionally expensive condition to suffer.

Global Prevalence of Psoriasis

Psoriasis prevalence is influenced by geographic, ethnic and demographic factors. Psoriasis affects between 2-3% of the world’s population. However, the rates can differ markedly between regions:

North America and Europe

There are more people who have psoriasis in these regions, with prevalence rates ranging from 2% – 4% of the population. In the United States and Sweden, there are higher rates of the disease because of genetic and environmental factors.

Asia

Rates are lower, around 0.2% to 1%, in Asian countries. While the numbers are lower, the condition still has a large impact on individuals and health systems.

Africa

Studies in African populations are limited, however, existing data indicate a prevalence of less than 1%. These figures may be underreported due to lack of access to dermatological care.

Australia and Oceania

This region has similar psoriasis prevalence as in North America and Europe 2-3%. Diagnosis and treatment for some indigenous populations may be unique.

Factors Influencing Psoriasis Prevalence

Several factors contribute to the varying prevalence rates of psoriasis worldwide:

Genetics

If there is a family history of psoriasis, the chance of having psoriasis is increased. There are certain genetic markers, such as HLA-Cw6, which are associated with a higher risk.

Climate

With cold, dry climates, psoriasis can become more noticeable, and even manifest with higher rates.

Healthcare Access

Lower prevalence rates and misdiagnosis may occur in areas with limited access to healthcare.

Lifestyle Factors

Factors that trigger psoriasis or make it worse include smoking, obesity, and stress, the prevalence of which can affect rates of the disease.

Request for our free guide 6 Proven Secrets To Improve Your Psoriasis.

If you are suffering from Psoriasis, discover natural proven techniques to improve and even completely reverse your condition by enrolling in our online course Psoriasis Expert Secrets.

Age and Gender Distribution

Psoriasis can develop at any age, but is more common among people 15 to 35 years of age. People aged 50 to 60 show a second peak of incidence. It affects both men and women equally, but some studies suggest women may have greater onset and more severe symptoms.

Psoriasis Subtypes and Their Prevalence

There is no one-size-fits-all condition with psoriasis. It manifests in several subtypes, each with unique characteristics and prevalence:

Plaque Psoriasis

About 80 – 90% of all cases are the most common form. It is marked by raised, reddened patches, covered by a silvery-white buildup of dead skin cells.

Guttate Psoriasis

This subtype is often caused by an infection and appears as small, drop-shaped lesions, usually in children and young adults.

Inverse Psoriasis

This type is less common but found in skin folds, such as under the breasts or around the groyne and can be particularly uncomfortable.

Pustular Psoriasis

It was a rare and severe form marked by white pustules surrounded by inflamed skin.

Erythrodermic Psoriasis

The least common (and most severe) type with widespread redness, scaling and severe itching or pain.

Comorbidities and Associated Conditions

Psoriasis is more than a skin condition; it is associated with several comorbidities that can affect overall health:

Psoriatic Arthritis

About 30% of those with psoriasis will also have psoriatic arthritis, which, if not treated, can cause severe disability.

Cardiovascular Disease

Psoriasis puts you at risk for heart disease and stroke, partly because it causes chronic inflammation.

Mental Health Disorders

Psoriasis sufferers are often depressed and anxious, as many people have an aversion to visible symptoms and become socially isolated.

Metabolic Syndrome

People with psoriasis tend to be more obese, have diabetes, and have higher blood pressure.

Economic and Social Impact

The burden of psoriasis extends beyond physical health, affecting quality of life and economic well-being:

Healthcare Costs

Psoriasis treatments, including topical medicines, phototherapy and biologics, can be expensive. In the United States, psoriasis costs more than $35 billion in economic burden annually.

Workplace Productivity

People with severe psoriasis may have difficulties in working because of physical discomfort or social stigma.

Social Isolation

Discrimination is based on visible symptoms that can have a negative impact on personal relationships and one’s state of mind.

Raising Awareness and Reducing Stigma

Psoriasis is a very common but misunderstood condition. Public education campaigns and advocacy efforts are crucial to:

Promote Early Diagnosis

This will increase awareness about specific symptoms, and encourage individuals to go get medical help.

Combat Stigma

Helping to educate the public on the non-contagious nature of psoriasis will hopefully help to reduce discrimination.

Support Research

By continuing to fund research, we’ll get to better treatments and eventually a cure.

Petrina answers the question “How Common is Psoriasis?“.

Conclusion

Millions worldwide are affected by psoriasis, yet its impact is rarely recognised. To promote empathy, advance research and improve care, it’s important to understand its prevalence, the factors that influence its development and the challenges people with the disease face. Being aware of psoriasis and supporting individuals with psoriasis can help to reduce the burden of this complex condition.

What if we told you that you can heal and even reverse your Psoriasis without having to depend on conventional medication? Start your Psoriasis journey with confidence, using our resources that are meant to guide and encourage you. Start by downloading our FREE Psoriasis guide booklet, containing all relevant information and helpful tips. For those interested in gaining further knowledge and learning more about comprehensive approaches, enrol in our special Psoriasis course. Furthermore, you can book a free consultation from our wellness clinic to get professional help that will be aimed at meeting your needs. Do not let Psoriasis be a hindrance – begin your path to improved skin health right away!

To learn more about Psoriasis, check out our other related blogs:

How does Psoriasis affect the skin?

If I’ve just been diagnosed with Psoriasis, what should I know?

How is Psoriasis diagnosed?

Can Psoriasis Affect Other Parts Of The Body Beside The Skin?

Are any other conditions linked to Psoriasis?

What Does Psoriasis Look Like?