Hypothetically speaking...
If one was to have a piercing many years ago, and subsequently remove the jewellery concerned, and leave said piercing until it had shrunk so small that one would possibly fit a hair fibre through the space where the jewellery had once been, and then one was to have a sudden rush of blood to the head and decide that one needed to return jewellery to the original piercing site, and instead of starting small with a fine piece of jewellery one decided that a full size piercing ring would be a really good idea; my advice would be to have a cup of tea and spend a few minutes recalling the pain of body piercing before one began on this venture.
Just a thought.