preventing psoriasis
Informed by recognized medical guidance
Overview
Psoriasis is a long-lasting skin condition in which skin cells grow too quickly and pile up on the surface, causing raised, scaly patches. It happens because the immune system mistakenly attacks healthy skin cells. It is not contagious.
Key facts
- Psoriasis is not contagious — you can’t catch it from someone.
- It often runs in families.
- It usually goes through cycles of flare-ups and quiet periods.
Yes. Psoriasis affects about 2% to 3% of people worldwide. That’s around 125 million people, making it quite common.
Psoriasis can start at any age, from babies to older adults. The most common time for it to first appear is between ages 15 and 35. It affects men and women equally and is more likely if you have a close family member with it.
Symptoms
- Sudden, widespread redness and pain over most of the body (possible erythrodermic psoriasis).
- Fever with a pustular rash (small pus-filled bumps) — this can be a sign of a severe form of psoriasis.
- A red, hot, painful patch of skin that spreads quickly along with chills or fever.
- Difficulty breathing or chest pain.
- ⚠A psoriasis flare that covers a large area and is very painful.
- ⚠Signs of a skin infection, such as increasing redness, warmth, swelling, or yellow crusting.
- ⚠New joint swelling, stiffness, or pain that limits everyday activities.
- ⚠You feel generally unwell with fever or chills and a flare.
Common symptoms
- Patches of thick, red, scaly skin, often on the elbows, knees, scalp, lower back, and nails.
- Silvery-white scales on the patches.
- Dry, cracked skin that may bleed or itch.
- Thickened, ridged, or pitted nails.
- Stiff, swollen joints, which can be a sign of psoriatic arthritis.
Symptoms in children
- In children, the patches may be smaller and less scaly than in adults.
- Scalp psoriasis is common and may look like stubborn dandruff.
- A type of psoriasis in babies can appear as a persistent diaper rash with red, shiny skin.
Symptoms in older adults
- In older adults, psoriasis may cause thinner, less red patches and more widespread dryness.
- Older age can bring a higher risk of joint problems (psoriatic arthritis).
- Skin injuries and some medicines used for other conditions may trigger flares more easily.
Causes
Main causes
- An overactive immune system that attacks healthy skin cells.
- Genes — psoriasis tends to run in families.
- Triggers such as stress, skin injuries (cuts, insect bites, sunburn), and certain infections (especially strep throat).
- Some medicines can trigger or worsen psoriasis — your doctor will tell you if any of yours might.
Risk factors
- Family history of psoriasis or psoriatic arthritis.
- Frequent throat infections in childhood or young adulthood.
- Smoking or heavy alcohol use.
- Obesity and metabolic syndrome.
- Having another autoimmune condition, such as type 1 diabetes or inflammatory bowel disease.
When to see a doctor
See a doctor urgently if:
- If you have any emergency symptoms listed above, call your local emergency number right away.
- If you develop a widespread flare with fever, confusion, or severe pain.
Book a routine appointment if:
- If you notice a persistent rash or skin patches that don’t go away after a few weeks.
- If you have pain, itching, or bleeding that interferes with sleep, work, or daily life.
- Before using any new skin treatment, talk to your doctor.
- If you have joint pain and swelling along with skin symptoms.
Diagnosis
A doctor can usually diagnose psoriasis by examining your skin, scalp, and nails and asking about your symptoms and family history. They may also check for joint pain or swelling.
Tests that may be done
- Skin biopsy (taking a tiny sample of skin to look at under a microscope) is sometimes used to rule out other conditions.
- Blood tests may be done if the doctor suspects another cause or wants to check for related health issues.
What to expect at your appointment
Your doctor will look at the affected areas and likely ask about your general health. If they think you need specialist care, they may refer you to a dermatologist (a skin specialist). You’ll receive a treatment plan, with no one-size-fits-all approach.
Treatment
Psoriasis treatment aims to slow skin cell growth, ease inflammation, and reduce flare-ups. While it cannot be cured, most people can achieve clear or nearly clear skin for long periods with a combination of self-care and medical treatments.
Self-care at home
- Moisturize your skin daily with a thick, fragrance-free cream or ointment.
- Bathe in lukewarm water and gently remove scales with a soft cloth — don’t scrub.
- Avoid scratching; keep nails short and consider wearing gloves at night.
- Protect your skin from cuts, scrapes, and sunburn.
- Manage stress with relaxation exercises, walks, or hobbies.
- Quit smoking and limit alcohol if you drink.
Medical treatments
Medical treatments are chosen based on how severe and widespread the psoriasis is. They generally fall into three groups: topical therapies applied directly to the skin, phototherapy using controlled ultraviolet light, and systemic or biologic treatments that work throughout the body (given as pills, injections, or infusions). Your doctor will prescribe an approach that suits you best, and may adjust it over time.
When is surgery considered?
Surgery is not used for psoriasis patches themselves. However, if psoriasis has caused joint damage (psoriatic arthritis) and other treatments are no longer enough, a doctor may discuss joint surgery, such as a joint replacement.
Living with this condition
Living with psoriasis means finding a routine that works for you. Use gentle skincare products, apply moisturizer after bathing, choose loose-fitting soft clothing, and keep a daily rhythm of sleep and activity. Many people find it helpful to keep a diary of flare-ups to spot patterns and avoid triggers.
Lifestyle tips
- Get regular exercise — swimming and yoga are gentle options.
- Aim for 7 to 9 hours of sleep each night.
- Spend time outdoors safely with sun protection — short, regular doses of sunlight may help some people.
- Avoid smoking and limit alcohol.
- Practice stress reduction like breathing exercises, meditation, or talking to a friend.
Diet and exercise
A balanced diet with plenty of vegetables, fruits, whole grains, and healthy fats can support overall health and may help reduce inflammation for some people. There is no one ‘psoriasis diet’, but staying at a healthy weight and staying active can improve outcomes. If you have specific dietary questions, ask a dietitian or doctor.
Mental health and emotional wellbeing
Psoriasis can affect how you feel about your appearance and can cause embarrassment or low mood. It’s natural to feel frustrated, anxious, or sad. Talking to a counselor, joining a support group, or simply confiding in someone you trust can make a real difference. Part of taking care of your skin is taking care of your feelings.
Prevention
There is no known way to prevent psoriasis if you have the genes that predispose you to it. But you can help prevent flare-ups by knowing your triggers and taking good care of your skin and health. Treating infections early, managing stress, and quitting smoking may reduce how often flares happen.
Vaccines
Vaccinations are recommended for people with psoriasis, including the COVID-19 vaccine and flu vaccine. In rare cases, a live vaccine may be used differently if you are on certain immune-suppressing treatments. Always tell your doctor that you have psoriasis and ask about your specific vaccination plan.
Screening programmes
There is no routine screening test for psoriasis. But because people with psoriasis have a higher chance of developing psoriatic arthritis, your doctor may ask about joint pain at check-ups. Regular visits allow for early detection of any related problems.
Complications
If left untreated
- Cracked skin can become infected with bacteria, requiring treatment.
- Severe, widespread psoriasis can lead to fluid loss, low body temperature, and serious infection.
- Psoriatic arthritis can develop, causing permanent joint damage.
- Psoriasis is linked to a higher risk of heart disease, stroke, type 2 diabetes, and depression.
Long-term outlook
A diagnosis of psoriasis is not a life sentence of discomfort. With today’s treatments, most people achieve good control and can live an active, full life. The more you learn about your skin and work with your care team, the better you can manage flare-ups and stay healthy.
Find support
International organisations
Local organisations
- Psoriasis Association UK ↗ · United Kingdom
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.