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Psoriasis: Myths, Facts, and What You Really Need to Know
Psoriasis is a pretty common condition that affects the skin, but a lot of people still misunderstand it. It’s an immune-related issue that causes flaky, crusty patches to appear—typically on areas like the scalp, knees, elbows, and lower back. These patches tend to look red on lighter skin and violet or purple on darker skin.
Globally, it’s hard to pin down exactly how many people live with psoriasis. But a 2020 study found that rates vary significantly—from as low as 0.14% in East Asia to as high as 1.99% in Australasia.
It’s not just about the skin, though. Psoriasis can affect your mental health, self-esteem, and overall quality of life. Unfortunately, the condition also comes with a lot of stigma and misinformation.
To set the record straight, let’s go through 10 common myths about psoriasis—and bust them with the help of two experts:
- David Chandler, CEO of the Psoriasis and Psoriatic Arthritis Alliance (UK)
- Dominic Urmston, Patient Advocacy Manager at the Psoriasis Association (UK)
Myth 1: Psoriasis is contagious
Let’s get this out of the way first—it’s absolutely not contagious.
“You can’t catch psoriasis,” says Chandler. “It’s an autoimmune condition where the immune system goes into overdrive and makes too many skin cells.”
Urmston adds, “It can’t be spread by touching, kissing, or sharing food or drinks. You also won’t catch it in public places like swimming pools or saunas.”
Myth 2: It’s just dry skin
Not even close.
While the flaky appearance may seem like dry skin, psoriasis is actually much more complex. “Skin normally renews itself every 28 days,” Chandler explains, “but in psoriasis, this happens every 4 to 5 days.”
Because of this rapid turnover, the skin cells pile up before they mature—forming thick, scaly patches. These areas can become sore, inflamed, and even bleed, especially if scratched.
Urmston points out that for people with more severe cases, the skin can crack painfully, making everyday tasks like walking, sitting, or using the bathroom difficult—especially if the patches are on the hands, feet, or sensitive areas.
Myth 3: There’s only one kind of psoriasis
Wrong again. Psoriasis isn’t a one-size-fits-all condition.
The most common type is plaque psoriasis, known for its thick, silvery-white scales. But there are other types too:
- Guttate psoriasis – small, raindrop-shaped spots
- Inverse psoriasis – occurs in skin folds like the armpits, groin, or under the breasts
- Erythrodermic psoriasis – a rare form with widespread peeling and redness
- Pustular psoriasis – painful, pus-filled blisters, often on the hands or feet
Myth 4: Psoriasis is caused by poor hygiene
Definitely not. People with psoriasis are often more attentive to their skin than others.
“Having psoriasis doesn’t mean someone is unhygienic,” says Urmston.
In fact, Chandler adds, “They usually have to be really diligent about self-care—applying treatments twice a day, especially on the scalp, to keep it under control.”
Myth 5: Doctors can cure psoriasis
Unfortunately, there’s no cure yet. But that doesn’t mean there’s no hope.
“While there isn’t a cure,” says Chandler, “we’re learning more all the time, and hopefully we’ll get there in the future.”
Urmston highlights that psoriasis can be managed effectively with the right treatments. There are lots of options—from topical creams to light therapy and advanced medications like biologics.
Myth 6: Psoriasis only affects the skin
Psoriasis may be visible on the skin, but its impact goes much deeper.
“Up to 6–42% of people with psoriasis also develop psoriatic arthritis,” says Urmston. This inflammatory condition affects joints, especially in the knees, hands, feet, lower back, and where tendons attach to bones.
Psoriasis also takes a toll on mental health. People often experience anxiety, depression, and low self-esteem, which can really affect daily life.
Myth 7: There’s nothing that helps
This couldn’t be further from the truth.
“There are plenty of treatments that can reduce symptoms,” Chandler says. These include:
- Topical treatments: Creams, gels, and ointments
- Phototherapy: Controlled exposure to UV light
- Systemic treatments: Oral or injectable meds that work throughout the body
Treatment isn’t one-size-fits-all, so working closely with a doctor or dermatologist is key.
Myth 8: Only adults get psoriasis
While it’s most common in adults, psoriasis can appear at any age.
“There are two main onset periods,” says Urmston. “Late teens to early 30s, and then again between 50 and 60.” Chandler adds that though rare, it can also show up in children and even babies.
Myth 9: Psoriasis and eczema are the same
They may look similar, but they’re totally different conditions.
“Eczema often stems from an allergic response, which psoriasis does not,” says Chandler.
Urmston explains that eczema usually shows up in the folds of the elbows or knees, while psoriasis more often appears on the outside of joints, the scalp, or lower back.
Psoriasis is an autoimmune disease, while eczema is usually influenced by allergies, genetics, or environmental factors—though some autoimmune overlap may exist.
Either way, it’s important to get a proper diagnosis from a healthcare provider to start the right treatment early.
Myth 10: Diet can cure psoriasis
No specific food or diet will cure psoriasis.
“There’s no solid proof that diet alone can treat or cure the condition,” says Chandler.
Still, both experts agree that a healthy lifestyle can help manage symptoms. “Obesity, alcohol, and smoking are known to worsen psoriasis,” Urmston notes. “So eating well, staying active, and avoiding triggers can make a big difference.”
Frequently Asked Questions (FAQ)
Q: Is psoriasis contagious?
No. You cannot catch or spread it through touch, air, water, or shared items.
Q: What’s the difference between psoriasis and eczema?
Psoriasis is autoimmune, while eczema is usually allergy-based. They also affect different body parts and age groups.
Q: Can kids get psoriasis?
Yes. Though more common in adults, psoriasis can affect children and, in rare cases, babies.
Q: Is there a cure?
Not yet, but there are many effective treatment options to manage symptoms.
Q: What triggers psoriasis flare-ups?
Common triggers include stress, infections, injury to the skin, cold weather, certain medications, smoking, and alcohol.
Conclusion: Living Well With Psoriasis
While psoriasis is a lifelong condition with no cure—yet—there’s a lot you can do to manage it effectively. From understanding the types, busting the myths, and seeking the right care, people with psoriasis can lead full, active lives.
Thanks to ongoing research and advocacy, treatments are constantly improving. If you or someone you love is dealing with psoriasis, remember: you’re not alone, and help is out there.
Take Action
- Talk to your doctor or dermatologist for the best treatment plan.
- Stay informed—follow trusted sources like the Psoriasis Association and MNT.
- Don’t let myths hold you back—share this information to help others understand the truth about psoriasis.