What is Chloasma? Diagnosis, Treatment & Prevention

Written by Medicover Team and Medically Reviewed by Dr Girishma J , Dermatologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Chloasma and melasma are often used interchangeably, but they have subtle differences. Chloasma is specifically associated with pregnancy, while melasma can be triggered by various factors, including hormonal changes, sun exposure, and certain medications. Both conditions present similarly, with darkened patches of skin that can cause significant cosmetic concerns.

What are the Causes of Chloasma?

Understanding the aetiology of chloasma is essential for effective treatment and prevention. The primary causes include:

Hormonal Changes

Hormonal fluctuations, particularly those related to pregnancy, oral contraceptives, and hormone replacement therapy, can trigger chloasma. This is why it is often referred to as the "mask of pregnancy."

Sun Exposure

UV radiation from the sun stimulates melanocytes, the cells responsible for pigment production, exacerbating chloasma. This makes sun protection a critical component of prevention and treatment.

Genetic Predisposition

A family history of chloasma increases one's susceptibility to the condition. Individuals with a genetic predisposition should be particularly vigilant about sun protection and skin care.

Medications

Certain medications, such as anti-seizure drugs and photosensitizing agents, can trigger or worsen chloasma. Patients should consult with their healthcare provider about potential side effects.

What are the Symptoms of Chloasma?

Visible Signs

The most apparent symptom of chloasma is the appearance of symmetrical, dark brown patches on the skin. These patches are usually found on areas of the face that receive the most sun exposure.

Psychological Impact

While chloasma is not physically harmful, it can have a significant psychological impact. The visible discolouration can lead to decreased self-esteem and confidence, particularly in social situations.

When to See a Doctor for Chloasma?

If you notice persistent or worsening dark patches on your skin, consult a Dermatologist for an accurate diagnosis and appropriate treatment. Early evaluation can help identify the underlying cause, rule out other pigmentation disorders, and improve treatment outcomes.

If you develop new or rapidly spreading dark patches on your face or other sun-exposed areas.
If the pigmentation changes in color, shape, or size.
If over-the-counter creams or home remedies do not improve the condition.
If the affected skin becomes itchy, painful, inflamed, or starts bleeding.
If you develop chloasma during pregnancy or while taking hormonal medications and are concerned about the changes.
If the pigmentation affects your confidence or quality of life.
If you have a personal or family history of skin disorders or skin cancer.
If your symptoms persist or worsen, consult a Dermatologist promptly for further evaluation and personalized treatment.

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How is Chloasma Diagnosed?

Chloasma is usually diagnosed through a detailed medical history and physical examination by a healthcare provider. The diagnosis is primarily based on the characteristic appearance and distribution of dark, symmetrical patches on the face. In some cases, additional tests may be performed to rule out other causes of skin pigmentation and determine the most appropriate treatment.

Clinical Examination: A dermatologist evaluates the size, color, location, and pattern of the pigmented patches.
Medical History: Assessment of pregnancy, hormone therapy, oral contraceptive use, family history, sun exposure, and skincare products.
Wood's Lamp Examination: A special ultraviolet light may be used to determine the depth of skin pigmentation and guide treatment.
Dermoscopy: A handheld device helps examine pigmentation patterns and differentiate chloasma from other skin disorders.
Skin Biopsy: Rarely required, but may be performed if the diagnosis is uncertain or another skin condition is suspected.

What are the Treatment Options for Chloasma?

Topical Treatments

Several topical treatments can help lighten chloasma patches and even out skin tone.

Hydroquinone

Hydroquinone is a skin-lightening agent that inhibits melanin production. It is often considered the first line of treatment for chloasma.

Retinoids

Retinoids promote cell turnover and can help reduce pigmentation. They are often used in conjunction with other treatments for enhanced efficacy.

Azelaic Acid

Azelaic acid has anti-inflammatory and skin-lightening properties, making it a suitable option for treating chloasma, particularly for individuals with sensitive skin.

Chemical Peels

Chemical peels involve applying a solution to the skin that causes the outer layer to exfoliate and peel off. This can help reduce pigmentation and improve skin texture.

Laser Therapy

Laser treatments, such as fractional lasers and intense pulsed light (IPL), target pigment cells and break down melanin. These treatments require multiple sessions and should be performed by a qualified dermatologist.

Microdermabrasion

Microdermabrasion is a non-invasive procedure that exfoliates the skin's surface, promotes cell turnover, and reduces pigmentation. It is often used in combination with other treatments for optimal results.

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How is Chloasma Managed During Pregnancy?

Managing Chloasma During Pregnancy

Due to hormonal changes, pregnancy-related chloasma, or melasma, is common. Managing this condition involves gentle skincare practices and stringent sun protection.

Postpartum Treatment

Chloasma often fades after childbirth as hormone levels normalize. However, persistent cases may require treatment with topical agents, chemical peels, or laser therapy under the guidance of a dermatologist.

How is Chloasma Prevented?

Preventing chloasma involves a multifaceted approach, focusing on lifestyle modifications and diligent skincare practices.

Sun Protection

It is imperative to use a broad-spectrum sunscreen with an SPF of at least 30 daily. Wearing wide-brimmed hats and seeking shade during peak sun hours can also minimize UV exposure.

h3 Hormonal Management

For those prone to hormonal fluctuations, consulting with a healthcare provider about alternative contraceptive methods or hormone replacement options may be beneficial. Pregnant women should follow their healthcare provider's advice to manage and mitigate chloasma symptoms.

Skincare Routine

Incorporating products with ingredients such as niacinamide, vitamin C, and hyaluronic acid can help maintain skin health and reduce the risk of chloasma. Regular exfoliation can also promote cell turnover and prevent pigment buildup.