Any amount of subcutaneous blood such as a hematoma can cause pigmentation or hyperpigmentation, espceially in a person with a darker skin. this will usually fade over 9 month.
it is critical to avoid sun bathing or tanning during this period in order to avoid permanenet hyperpigmentation.
keeping the skin moist with oily lubricants helps the health of the skin during this period. some doctors feel that bleaching creams such as Hydroquinon are effective but in my opinion they don't make a lasting difference. It just takes time!
Sean Younai, MD Beautifulfigure.com



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