I just turned to 20 bt at the age of 16 I found white patches on my skin especially in genital area,at initially it was negligible but with the passage of time it got increased and in recent time its now found in other parts of the body like hands,feet,legs etc,,,Many doctors told me that this is due to calcium deficiency,,,please help me to find out the basic cause of this skin problem and what are the treatment rules for this in order to get rid of these patches as mentioned above.... Thanks & regards Sabiq tariq India(j&k) +91-0000