Fresh belly piercings tend to close quickly. If you've had one for years, it can close in a few weeks, but for some people it can take longer. Make sure you clean the area regularly until it's fully healed. If you want to keep your piercing for the long term, put jewelry in it all the time.
Do belly button piercing holes go away?
If you realize right away that your new notch is not for you, it's likely to close on its own. “When you get a piercing, it takes four to six weeks for it to heal up, after which time the hole can be permanent,” says New York dermatologist Joshua Zeichner, MD.
Will my belly button piercing close when pregnant?
If your piercing has fully healed, yet you choose to remove the belly button ring, the hole might close. To prevent this, you can re-insert the piercing and move it around a couple of times a week. This helps keep the hole open. If this doesn't work, you may have to re-pierce your belly button after having the baby.