Introduction to Psoriasis
They say money doesn’t buy happiness. And for some, it also can’t buy skin health. One persistent, inflammatory skin disease has become a growing problem across the globe, especially in wealthier areas, according to a new analysis of 236 countries.
The Rise of Psoriasis
In JAMA Dermatology last week, researchers in China warned that the incidence rate of psoriasis increased more than 10% for men and over 7% for women between 1990 and 2021.
Globally, cases jumped by 86%, from 23.1 million in 1990 to 43 million in 2021.
Cases of one skin condition are on the rise, with wealthier regions seeing an increase over the years. H_Ko – stock.adobe.com
Affected Regions
North America and Western Europe — two wealthier regions of the world — reported the highest incidences and are projected to have the most new cases by 2050.
Over 7.5 million US adults have psoriasis, which is believed to be caused by an overactive immune system.
Symptoms of Psoriasis
Skin cells build up much faster than they should, triggering symptoms like red, scaly, itchy patches, commonly on the elbows, knees and scalp.
North America and Western Europe have seen an increase in psoriasis cases since 1990. Vasyl – stock.adobe.com
Theories Behind the Increase
While flare-ups can be brought on by stress, weather or other health conditions, the researchers have theories as to why wealthier areas could be more affected in the future.
High-income regions, like wealthy US and European cities, may have more people willing to report their symptoms and more doctors properly diagnosing cases.
Another theory is tied to the hygiene hypothesis.
This hypothesis suggests that the increased number of allergic and autoimmune disorders is due to the ultra-clean conditions of modern, high-income societies, which reduce exposure to certain microbes and parasites and lead to weaker immune systems.
Famous Cases and Risk Factors
Even billionaire Kim Kardashian, 45, and mom Kris Jenner, 70, have it.
Having a family history of psoriasis significantly increases the likelihood you’ll develop the condition.
Infections like strep throat, skin injuries and exposure to air pollutants can also up the odds.
A study in the Journal of Investigative Dermatology found a link between excess belly fat and the chronic skin condition, with the connection being particularly strong in women.
Treatment and Management
There’s no known cure for psoriasis, but topical creams, biologic medications and light therapy can help manage symptoms.
Conclusion
The rise of psoriasis in wealthier regions is a concerning trend that warrants further research and attention. By understanding the causes and risk factors associated with this condition, we can work towards developing more effective treatments and improving the lives of those affected.
FAQs
- Q: What is psoriasis?
A: Psoriasis is a persistent, inflammatory skin disease characterized by the rapid buildup of skin cells, leading to red, scaly, itchy patches. - Q: What are the risk factors for psoriasis?
A: Risk factors include family history, infections like strep throat, skin injuries, exposure to air pollutants, and excess belly fat. - Q: Is there a cure for psoriasis?
A: There is no known cure for psoriasis, but symptoms can be managed with topical creams, biologic medications, and light therapy. - Q: Why are wealthier regions more affected by psoriasis?
A: Theories include better reporting and diagnosis, as well as the hygiene hypothesis, which suggests that ultra-clean conditions in high-income societies may lead to weaker immune systems.

