hii Stretchmarks marks tend to occur due to loss of skin elastic tissue as a result of excessive weight gain or weight loss. Certain creams can help in reducing the appearance of stretchmarks. treatments like peels,dermarollers,certain Lasers can help in reducing them to a great extent. Though drinking lots of water is gud to the skin it has no effect on your stretchmarks. Even temporary camouflage can help you overcome them socially.