Belly button rings, like all piercings, have become safer to get now that they are more socially acceptable. Belly button rings were once done at home by friends or in the back of shops by people who had no right to be piercing anyone. Many times this would lead to infection and scarring because it was either done improperly or the person getting the piercing was not instructed on the care it needed.
Source: http://EzineArticles.com/5890990
weather reference