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Ultraviolet light from the sun will cause a scar to darken and make cause hyperpigmentation. Always wear sunblock of at least spf 25 if possible for one year after the scar develops.
Scars typically turn brown in response to sunlight and the UV radiation found in the sunlight. Often lasers can be used to treat the hyperpigmentation in scars and reduce it.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.