Psoriasis: Forms, diagnosis, treatments and costs in Turkey

What is psoriasis and why is it more than a skin problem?

Psoriasis is a chronic immune-mediated inflammatory condition in which the skin's natural renewal cycle goes into overdrive. Normally, skin cells are replaced every 21-28 days. In psoriasis, that cycle compresses to 3-5 days, causing a rapid build-up of cells that form the characteristic thick, scaly plaques on the surface.

According to the World Health Organization, psoriasis affects approximately 100 million people worldwide, making it one of the most prevalent chronic skin conditions globally. Despite its visibility, it remains poorly understood by the general public, and significantly undertreated.

What makes it harder to manage is the systemic nature of the disease. Psoriasis is not merely cosmetic. Research published in the Journal of the American Academy of Dermatology links moderate-to-severe psoriasis with elevated cardiovascular risk, metabolic syndrome, and psychological conditions including depression and anxiety. Managing it effectively requires a specialist's eye, not just a prescription for a steroid cream.

One important clarification: psoriasis is not contagious. Physical contact with affected skin poses zero transmission risk.

Types of psoriasis

Psoriasis presents itself in several distinct forms, each requiring a different approach to management:

• Plaque psoriasis (also known as psoriasis vulgaris) creates thick, red patches with silvery-white scaling. These typically appear on elbows, knees, scalp, and buttocks, often accompanied by significant itching.
• Inverted psoriasis looks different. Smooth, red patches develop in skin folds like underarms, groin, and genital areas, where moisture and friction create ideal conditions for flare-ups.
• Guttate psoriasis frequently affects younger patients. Tiny, raindrop-like lesions suddenly appear across the trunk and limbs, usually after a viral or strep infection.
• Erythrodermic psoriasis represents the most severe form. Large areas of the body become covered in red, scaling skin. The condition can compromise the skin's protective barrier much like a serious burn.
• Pustular psoriasis involves small, pus-filled bumps that may stay localized on palms and soles, or spread more widely with accompanying redness, thickening, and cracking.

What causes psoriasis and what triggers a flare?

Psoriasis develops at the intersection of genetic susceptibility and environmental triggers. Having a first-degree relative with psoriasis roughly doubles your risk of developing the condition.

Common triggers that activate or worsen psoriasis include:

• Infections: particularly streptococcal throat infections (the most established trigger for guttate psoriasis) and HIV.
• Psychological stress: one of the most consistent triggers across all psoriasis types.
• Skin trauma: cuts, sunburns, and surgical wounds can initiate new plaques at the site of injury (the Koebner phenomenon).
• Medications: lithium, beta-blockers, antimalarials, and NSAIDs have documented psoriasis-triggering potential.
• Smoking and alcohol: both independently increase disease severity and reduce treatment response.
• Hormonal changes: puberty, pregnancy, and menopause are associated with flare patterns.
• Cold, dry climates: winter conditions commonly worsen symptoms.

Understanding your personal trigger profile is clinically valuable. Turquie Santé's dermatologists conduct detailed patient histories to identify modifiable risk factors, a step that is often skipped in brief consultations back home.

How is psoriasis diagnosed in Turkey?

Accurate diagnosis is the foundation of effective treatment. Psoriasis can closely resemble other dermatological conditions, such as seborrheic dermatitis, eczema, pityriasis rosea, and misdiagnosis is not uncommon.

The diagnostic process at Turquie Santé's partner clinics typically involves:

1. Clinical examination: A specialist assesses lesion morphology, distribution, and associated features (nail changes, joint symptoms). The PASI score (Psoriasis Area and Severity Index) is used to objectively grade disease severity, a key factor in determining treatment eligibility, particularly for biologics.
2. Dermatoscopy: Non-invasive magnification imaging allows precise examination of lesion characteristics, improving diagnostic accuracy and ruling out differential diagnoses.
3. Skin Biopsy (when indicated): A small skin sample taken under local anesthesia confirms the diagnosis histologically, particularly in atypical cases or before initiating biologic therapy.
4. Laboratory Investigations: Blood tests including full blood count, liver function tests, inflammatory markers (CRP, ESR),and hepatitis serology are typically required before prescribing systemic treatments. These are included in comprehensive consultation packages.
5. Psoriatic Arthritis Screening: If joint symptoms are present, imaging and rheumatology consultation are coordinated as part of the diagnostic process.

What psoriasis treatments are available in Turkey?

Turkish dermatology centers offer the full spectrum of evidence-based psoriasis treatments, in line with European dermatology guidelines (EDF/EuroGuiDerm).

Topical treatments: First-line for mild cases

For limited plaque psoriasis (affecting less than 3-5% of body surface area),topical therapy alone is often sufficient:

• Corticosteroid creams and ointments: rapid anti-inflammatory effect; used intermittently to avoid skin thinning
• Vitamin D analogues (calcipotriol, calcitriol): slow skin cell turnover without corticosteroid side effects
• Coal tar preparations: among the oldest and most effective topical agents, particularly for scalp psoriasis
• Salicylic acid: keratolytic agent that removes scale and improves penetration of other treatments
• Calcineurin inhibitors (tacrolimus, pimecrolimus): preferred for facial and inverse psoriasis

Phototherapy: Highly effective for moderate psoriasis

Narrowband UVB phototherapy is widely regarded as one of the most effective treatments for moderate psoriasis and is available at multiple Turquie Santé partner clinics. It works by suppressing the overactive immune response in the skin.

A standard phototherapy course involves 2-3 sessions per week over 6-8 weeks. Response rates are high: clinical studies show clearance or near-clearance in 60-75% of patients completing a full course.

PUVA therapy (UVA light combined with a photosensitizing agent called psoralen) is a more intensive alternative, used for patients who don't respond adequately to UVB.

Practical note for international patients: Turquie Santé can arrange intensive phototherapy schedules (daily sessions) that allow patients to complete a meaningful treatment course during a 2-3 week medical stay.

Systemic medications: For moderate to severe cases

When topical treatments and phototherapy are insufficient, oral or injectable systemic agents are prescribed, including for associated conditions like psoriatic arthritis:

• Methotrexate: reduces skin cell proliferation and inflammation; one of the most widely used systemic agents globally.
• Cyclosporine: fast-acting immunosuppressant; used for rapid disease control in severe flares.
• Acitretin: oral retinoid particularly effective for pustular and erythrodermic psoriasis.
• Apremilast (Otezla): newer oral agent targeting PDE4; useful for patients who cannot tolerate or inject biologics.

These medications require a specialist prescription and baseline investigations, all of which are managed by Turquie Santé's partner dermatologists.

Biologic therapy: the gold standard for severe cases

Biologic medications represent the most significant advance in psoriasis treatment in the past two decades. They are highly targeted therapies that block specific inflammatory pathways driving the disease.

Available classes include:

Clinical trials published in the New England Journal of Medicine show PASI 90 response rates (90% skin clearance) of 70-85% for IL-17 and IL-23 inhibitors, significantly higher than older treatments.

In Turkey, biologic therapies are prescribed by board-certified dermatologists or rheumatologists, following EU-standard eligibility criteria. Patients typically need to fail at least two conventional treatments first. Turquie Santé can manage the full work-up and initiation visit, with follow-up care coordinated with your home physician.

What risks and side effects should you know about?

Transparency matters. Here is an honest overview of the risks associated with each treatment category:

• Topical steroids: Long-term overuse can cause skin thinning (atrophy),stretch marks, and systemic absorption. Dermatologists in Turkey follow step-up protocols to minimize this risk.
• Phototherapy: Short-term effects include redness, itching, and mild burning similar to sunburn. Long-term risks include premature skin aging and, with PUVA, a small increased risk of skin cancer, which is why treatment courses are carefully dosed and monitored.
• Methotrexate: Requires regular liver function monitoring. Long-term use carries hepatotoxicity risk. Alcohol must be avoided during treatment. Methotrexate carries a very high risk of serious birth defects and pregnancy loss. Strict, effective contraception is mandatory for both women and men throughout the treatment and for at least 6 months after the last dose, or longer if your doctor or the product leaflet requires it. Pregnancy must be ruled out before starting, and any pregnancy during or after treatment must be reported to your doctor immediately. Always follow the specific instructions of your doctor and the product leaflet.
• Cyclosporine: Affects kidney function and blood pressure with prolonged use; typically limited to short courses of 3-6 months.
• Biologics: As immunosuppressants, they increase susceptibility to infections. Before initiation, screening for tuberculosis is mandatory, and screening for hepatitis B and C is also required, in line with European dermatology guidelines (EuroGuiDerm). Latent infections, such as hepatitis B in silent carriers, can reactivate during treatment, so they must be screened for and monitored throughout. Prolonged immunosuppression is also associated with a small risk of certain cancers (such as lymphomas and skin carcinomas),which calls for regular follow-up and skin checks. Injection-site reactions are common but usually mild. Risks differ by class, and serious adverse effects are uncommon but possible:
  • TNF-alpha inhibitors (adalimumab, etanercept): serious infections including tuberculosis reactivation, rare demyelinating (neurological) disease, worsening of heart failure, and certain malignancies reported in some patients.
  • IL-17 inhibitors (secukinumab, ixekizumab): mucocutaneous Candida infections (oral or genital thrush) and a risk of new or worsening inflammatory bowel disease.
  • IL-23 inhibitors (guselkumab, risankizumab): generally well tolerated, mainly upper respiratory infections and injection-site reactions, but the infection risk remains and screening still applies.
  • IL-12/23 inhibitor (ustekinumab): infections and, rarely, hypersensitivity reactions.
  The frequency of these events varies between patients and products, and your dermatologist will discuss them with you before treatment. Rare serious adverse effects are monitored in specialist follow-up.

All prescribing decisions at Turquie Santé's partner clinics are made by board-certified specialists following published safety protocols.

How does the Turquie Santé process work for international patients?

Here is exactly what the experience looks like, step by step:

• Step 1: Free online request: Submit your case via turquiesante.com: describe your psoriasis type, previous treatments tried, current medications, and share photos if possible. This takes under 10 minutes.
• Step 2: Medical review and personalized quote: Within 24-48 hours, a Turquie Santé coordinator reviews your case with the relevant dermatology specialist and provides a treatment plan and cost estimate.
• Step 3: Clinic confirmation and travel planning: Once you confirm, Turquie Santé books your clinic appointments, organizes VIP airport transfers, and assists with visa documentation if required.
• Step 4: On-the-ground care in Turkey: Your stay typically lasts 3-7 days. You'll receive your full consultation, diagnostic work-up, and treatment initiation under specialist supervision. A bilingual patient liaison accompanies you throughout.
• Step 5: Remote follow-up: After returning home, your treating dermatologist in Turkey remains available via video or messaging for ongoing guidance. Your home physician receives a full medical report.