What are the causes of scalp psoriasis?

Scalp psoriasis is a common form of this chronic inflammatory disease, affecting approximately 30% of people with psoriasis. Its causes are complex and result from an interaction between genetic, immune, and environmental factors. Here's an overview of the main causes and factors that trigger or worsen scalp psoriasis.

1. Genetic Factors

Psoriasis is largely hereditary:

• Genetic Transmission: If one or more family members have psoriasis, your risk of developing the condition increases.
• Genes Involved: Mutations in certain genes regulating the immune system, such as those related to HLA-Cw6 proteins, increase susceptibility to psoriasis.

2. Immune System Dysfunction

Psoriasis is an autoimmune disease. The immune system mistakenly attacks skin cells, leading to:

• Chronic inflammation.
• Accelerated skin cell turnover, which accumulates to form thick, scaly patches.
• Excessive release of inflammatory cytokines (such as IL-17 and IL-23), responsible for redness and itching.

3. External Triggers

Certain environmental factors can worsen or trigger scalp psoriasis in predisposed individuals:

Stress

• Stress is one of the most frequent triggers. It disrupts the balance of the immune system, intensifying inflammation.

Skin Trauma

• Injuries, cuts, or repeated irritation to the scalp (Koebner phenomenon) can cause psoriasis plaques to appear.

Cold and Dry Climates

• These environmental conditions dry out the skin and worsen psoriasis symptoms.

Medications

• Certain medications, such as beta-blockers, non-steroidal anti-inflammatory drugs (NSAIDs), or lithium, can exacerbate psoriasis.

Infections

• Infections, particularly strep throat, can trigger psoriasis flare-ups, especially in younger individuals.

4. Scalp Microbiome Imbalance

An unbalanced microbiome (the natural microorganisms present on the skin) can promote inflammation and psoriasis symptoms. This can be aggravated by:

• The use of harsh hair products.
• Shampoos containing sulfates or artificial fragrances.

5. Other Aggravating Factors

Alcohol and Tobacco

• Tobacco and alcohol consumption is associated with more frequent and severe psoriasis flare-ups.

Diet

• Diets rich in refined sugars, saturated fats, and processed foods can worsen inflammation.

6. How to Manage These Causes?

While some factors like genetics cannot be changed, you can reduce psoriasis symptoms by limiting environmental triggers and adopting an appropriate routine. Here are some recommendations:

• Gentle Shampoo: Use a shampoo with a slightly acidic pH, such as MakeMyMask pH5 Gentle Shampoo, to avoid irritation.

• Hydration and Soothing: Apply MakeMyMask Soothing Serum, which helps rebalance the microbiome and reduces itching thanks to its probiotics and moisturizing agents.

• Exfoliation: To remove thick scales, the trichoPure Anti-Pso Concentrate, enriched with salicylic acid, is ideal.

Conclusion

Scalp psoriasis results from multiple factors, ranging from genetic predispositions to external triggers such as stress, skin trauma, or microbiome imbalances. Appropriate management, combining specific treatments like those from MakeMyMask and a balanced lifestyle, can greatly relieve symptoms and improve quality of life.