Skin Pigmentation

Pigmentation disorders involve changes in the natural colour of the skin, primarily influenced by melanin, the pigment responsible for skin, hair, and eye colour. When melanin production is disrupted due to damaged or malfunctioning melanocytes (the cells that produce melanin), it can lead to uneven skin tone, either in localised patches or across larger areas.

Pigmentation issues are typically divided into two main categories:

Hyperpigmentary Disorders

Hyperpigmentation refers to the darkening of the skin due to an excess production of melanin. Common conditions include:

• Melasma: A chronic condition that causes symmetrical, brown or grayish-brown patches on sun-exposed areas of the face, such as the cheeks, forehead, and upper lip. It is more prevalent in women and those with darker skin tones. Treatments include topical creams with hydroquinone, chemical peels, laser therapy, and hydroxychloroquine (Pigmanorm), especially effective for melasma.
• Post-inflammatory Hyperpigmentation (PIH): This condition occurs following skin trauma, inflammation, or skin conditions, leading to darkened patches as the skin heals. It can affect all skin types and can appear anywhere on the body.
• Sun-Induced Pigmentation: Prolonged exposure to ultraviolet (UV) rays can cause sun damage, visible as brown spots, freckles, or age spots. While some of these spots may fade with reduced sun exposure, others may persist and require treatments such as topical creams or laser therapy.

Hypopigmentary Disorders

Hypopigmentation results in lighter skin due to reduced melanin production. A common condition is Vitiligo, a condition where the skin loses pigment in patches, turning the affected areas white. This occurs when melanocytes are destroyed or stop functioning.

Several factors can cause pigmentation disorders:

• Sun Exposure: UV radiation stimulates melanin production, contributing to dark spots and hyperpigmentation.
• Genetic Factors: Your genes influence how melanin is distributed in your skin.
• Hormonal Changes: Hormonal fluctuations, particularly during pregnancy or menopause, can affect melanin production.
• Medications: Certain drugs, such as chemotherapy agents or antibiotics, can alter skin pigmentation.
• Skin Trauma: Injuries, inflammation, or conditions like acne can lead to excessive melanin production as the skin heals.

Pigmentation issues can be managed through taking steps such as:

• Regular use of sunscreen to protect against UV rays.
• Wearing protective clothing when exposed to the sun.
• Avoiding tanning beds and prolonged sun exposure.

At RENA, our dermatologists start with a comprehensive consultation to assess your specific condition, including a detailed medical history and physical examination. In some cases, a skin biopsy may be recommended for an accurate diagnosis, with all treatment plans carefully tailored to your specific needs to ensure the most effective care for your pigmentation disorder.

Treatment options are tailored based on whether the condition involves hyperpigmentation or hypopigmentation. For hyperpigmented conditions like melasma, treatments may include topical lightening agents such as hydroquinone, chemical peels, or laser therapy. For hypopigmented conditions like vitiligo, treatment may involve topical therapies.