What Is Psoriasis: Symptoms, Causes, Types & Treatment
Have you noticed red, scaly patches on your skin that don’t seem to go away? Or perhaps you have dandruff affecting your clothing choices? Or maybe even changes in your nails that make you feel uncomfortable and self-conscious? Psoriasis, a chronic skin condition, might be the culprit. The good news is that effective treatments are available to help manage symptoms and improve your quality of life.
At Lumine Dermatology, we can provide personalised care for psoriasis and other skin conditions. Our team is here to guide you along the way—from diagnosis to treatment. Let’s dive into everything you need to know about psoriasis and how to get the help you need.
What Is Psoriasis?
Psoriasis is a chronic condition that causes the rapid build-up of skin cells, leading to scaling, redness, and inflammation. Unlike healthy skin cells that renew over weeks, psoriasis triggers an accelerated cycle that results in thick, scaly patches of skin. These patches can appear anywhere on the body and vary in severity from mild to severe.
This condition is not contagious and doesn’t spread from person to person. However, it can significantly impact a person’s quality of life, especially if left untreated.
What Does Psoriasis Look Like?

Psoriasis often presents as red or pink patches of skin covered by silvery-white scales. It may appear differently based on the type and location. For instance:
- Plaque psoriasis: Raised, scaly patches
- Inverse psoriasis: Smooth, red areas
- Pustular psoriasis: Pus-filled bumps with surrounding redness, often arising from typical psoriasis plaques. This is a sign of unstable psoriasis.
The affected areas may feel itchy, dry, or cracked especially on the hands and feet. In severe cases, the entire body may be covered in inflamed red patches.
How Common Is Psoriasis?
Psoriasis is a common chronic skin condition, affecting approximately 2-3% of the global population, which translates to over 125 million people worldwide. In Singapore, at least 40,000 individuals or 1-2% of the population is affected. It can develop at any age but frequently presents in 2 peaks. The first peak is between 20 to 30 years of age, with the second peak between 50 to 60 years of age.
While psoriasis affects men and women equally, it is more common in individuals with a family history of the condition. Additionally, certain ethnic groups, such as Caucasians, tend to have slightly higher prevalence rates compared to others.
Symptoms of Psoriasis
Common Signs and Symptoms
Psoriasis symptoms vary widely but often include:
- Red patches of inflamed skin
- Thick, silvery scales covering the patches
- Itching, burning, or soreness
- Dry, cracked skin that may bleed
- Thickened, pitted, or ridged nails
- Stiff and swollen joints in cases of psoriatic arthritis
These symptoms can range from mild to severe and may flare up periodically.
Variations by Type
Different types of psoriasis manifest in unique ways. For instance, plaque psoriasis shows thick, scaly patches, whereas pustular psoriasis presents with white pustules surrounded by redness. Guttate psoriasis’s small, drop-shaped lesions are distinct from the smooth, inflamed areas of inverse psoriasis.
Complications and Associated Conditions
Psoriasis can lead to other health issues, including:
- Psoriatic arthritis: Joint pain, stiffness, and swelling
- Mental health challenges: Increased risk of anxiety and depression
- Chronic conditions: Higher likelihood of obesity, diabetes, high blood pressure, and cardiovascular diseases
Addressing these complications early with a dermatologist can help minimise their impact.
What Causes Psoriasis?
- Genetic Factors
Psoriasis often runs in families. If you have a parent or sibling with the condition, your chances of developing it increase. Certain genes have been linked to the condition, though having these genes doesn’t guarantee you’ll develop psoriasis.
- Immune System Role
Psoriasis is an inflammatory condition. It occurs when the immune system affects healthy skin cells, triggering inflammation and speeding up the skin’s production cycle. This results in the build-up of skin cells, causing the characteristic scaly patches.
- Environmental Triggers
Several external factors can trigger or exacerbate psoriasis symptoms, including:
- Stress: High stress levels can worsen flare-ups.
- Infections: Conditions like streptococcal throat infection may trigger guttate psoriasis.
- Medications: Certain medications like beta-blockers, anti-malarial drugs and mood stabilizers may aggravate psoriasis
- Skin injuries: Cuts, scrapes, or sunburns can cause new psoriasis patches to form. This phenomenon is known as Koebner’s phenomenon.
Risk Factors
Certain factors increase the likelihood of developing psoriasis, such as:
- Family history: Approximately 20% of individuals have a family affect who is similarly affected.
- Lifestyle factors: Smoking and excessive alcohol consumption aggravate psoriasis
- Obesity: Excess weight is associated with psoriasis and reduces the effectiveness of some biologic treatments
- Chronic stress: Stress e.g lack of sleep or certain infections aggravate psoriasis
Treatment Options for Psoriasis
Topical Treatments
Topical treatments are often the first line of defence for mild to moderate psoriasis. These include:
- Corticosteroid creams: To reduce inflammation and itching
- Vitamin D analogues: To regulate the skin cycle to minimize the build of up of dead skin cells
- Salicylic acid: To remove scales and smooth the skin
- Coal tar: To reduce inflammation which in turn alleviates itching and scaling
Phototherapy
Phototherapy, or light therapy, involves exposing the skin to controlled amounts of ultraviolet (UV) light. It slows down the overproduction of skin cells and reduces inflammation. This treatment is typically used for moderate to severe psoriasis.
Systemic Medications
For cases that don’t respond to topical treatments, systemic medications are often prescribed. These include oral or injectable drugs like:
- Methotrexate: Suppresses the immune system to reduce inflammation
- Cyclosporine: Helps control the immune response
- Oral retinoids e.g Acitretin: Regulate skin cell production
Biologic Therapies
Biologic therapies are targeted treatments that block specific immune system pathways involved in psoriasis. These include drugs include but are not limited to risankizumab (Skyrizi ®), ixekizumab (Taltz ®), secukinumab (Cosentyx ®), which are safer adn effective options for the manage of moderate to severe psoriasis with or without concomitant arthritis and nail changes.
Lifestyle and Home Remedies
Making certain lifestyle changes can help manage psoriasis symptoms:
- Moisturise regularly: Prevents dryness and scaling
- Avoid triggers: Identify and minimise stress, alcohol, or irritants
- Maintain a healthy weight: Reduces inflammation and pressure on joints
- Follow a balanced diet: Anti-inflammatory foods can help manage symptoms
How to Cure Psoriasis Permanently?
While there is no permanent cure for psoriasis, effective management is possible with a combination of treatments and lifestyle adjustments. Working closely and consistently with a dermatologist to develop a tailored treatment plan can help you achieve long-term remission and lead a more comfortable life. Your visit to the swimming pool or clothing choices need not be limited by psoriasis if the right treatment is given.
At Lumine Dermatology, we provide expert guidance and state-of-the-art treatments designed to help you manage psoriasis effectively.
Can You Live a Normal Life with Psoriasis?
Yes, you can live a normal and fulfilling life with psoriasis. The key lies in early diagnosis, consistent treatment, and adopting healthy habits. While flare-ups can be challenging, maintaining open communication with your dermatologist and sticking to your treatment plan can significantly improve your quality of life.
Take the First Step Toward Healthier Skin
Psoriasis doesn’t have to control your life. At Lumine Dermatology, we combine advanced medical treatments with compassionate care to help you achieve clearer, healthier skin. Whether you’re seeking relief from mild symptoms or need help managing a severe condition, we’re here to help. Schedule a consultation today, and let us create a personalised treatment plan tailored to your needs!
FAQ
How Is Psoriasis Diagnosed?
Psoriasis is typically diagnosed through a physical examination of the skin. In some cases, a dermatologist may perform a skin biopsy to confirm the diagnosis and rule out other skin conditions.
Can Stress Make Psoriasis Worse?
Yes, stress is a significant trigger for many people with psoriasis. High-stress levels can lead to flare-ups or worsen existing symptoms. Stress management techniques like mindfulness, exercise, and therapy can help reduce the impact of stress on psoriasis.
Can Psoriasis Affect Mental Health?
Yes, psoriasis can have a profound impact on mental health. The visible nature of the condition can lead to self-consciousness, anxiety, and depression. Managing psoriasis with medical treatments and seeking emotional support from professionals or support groups can help improve mental well-being.
Can Children Develop Psoriasis?
Yes, psoriasis can affect children, though it is less common. Guttate psoriasis is the type most frequently seen in younger individuals, often triggered by infections like streptococcal throat infection. Early diagnosis and treatment are crucial to managing the condition in children effectively.
How to Cure Psoriasis Permanently?
There is currently no permanent cure for psoriasis. However, various treatments can manage symptoms effectively. These include topical treatments, light therapy, systemic medications, and biologic therapies. Our dermatologist can help create a personalised treatment plan for long-term symptom control.