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色素异常、驻站医、面部斑点、妊娠性黄褐斑、褐青斑、妊娠斑
Melasma (chloasma) is symmetric hyperpigmented brown-gray facial patches (cheeks/forehead/chin/mustache area) in women, triggered by sun exposure/pregnancy/oral contraceptives/hormones. Treatment: strict sun protection (SPF 50+ broad-spectrum, hats); topical hydroquinone (2-4%); azelaic acid; kojic acid; retinoids (tretinoin); topical tranexamic acid; combination creams (hydroquinone+tretinoin+steroid: Kligman); chemical peels (glycolic/salicylic); laser/IPL (cautious, may worsen); avoid OCP/hormones; treat thyroid; follow-up dermatology; monitor recurrence.
Symmetric hyperpigmented facial patches; cheeks/forehead/chin; women; sun/hormones
Sun + hormones stimulate melanocytes causing epidermal/dermal pigment overproduction.
Sun protection; hydroquinone/azelaic/retinoid/tranexamic; peels/laser
Sun protection; avoid OCP/hormones; hats.
It is recommended to visit the Dermatology department; an appointment can be booked on this platform before the visit.
Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.
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