Brown spots on legs can appear almost at any age. If you happen to have the scaly dark spots on your body, they could be simply birth marks. Birth marks, unless they are white marks, should not be a reason for any alarm. However, if the age spots appear at some point in your life, it could mean a medical condition. We will look at the causes below.
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1 Mexico ranks number 10 in the list of countries by population. 2  The population density in Mexico is 66 per Km2 (171 people per mi2). 3  The total land area is 1,943,082 Km2 (750,228 sq. miles)  78.1 % of the population is urban (100,696,829 people in 2016)