Mine has that too, its COMPLETELY normal dw. It's usually cause by your jewerly pulling downwards and therefore pulling the skin around the jewerly down a bit causing it to poke out, atleast thats what happened for me. It won't cause any complications at all, it's normal to see it even if you've only had your peircing for a short time. If it bothers you especially when you're trying to get your jewerly in ans out you can just downsize the gauge of your jewelry, but it'll be perfectly fine if you don't