Yes
After 3 years chances are good it wont close, the piercing will shrink but not close completely.
Plastic surgery
stitches...
if its a fresh piercing the hole will close up pretty quickly, if you've had it for a while the hole will probably take a while to close up
a week at most
When you get pregnant, most care providers recommend removing your belly button ring. Even women who don't remove their rings report that belly button rings itch and pull as the belly stretches around the fifth or sixth month. There is also the risk of infection if the belly button ring scratches you or opens a small wound. If you do take out your belly button ring, the piercing hole will probably close, requiring you to re-pierce your belly button after having your baby. However, if you don't want to take out your belly button ring you may want to purchase a non-metal pregnancy piercing ring. These are flexible and two inches long to accommodate your growing belly. Pregnant women claim that this product allows them to keep their bellies pierced without the discomfort of other belly button piercing.
Your belly button does not close. You are stuck with it for life.
No way to speed that up really. Keep it dry and disinfected and out of the sun until it's healed.
Well it will shrink then eventually close (2-3 months), it could take several months for your body to break down the tissue that has formed in the piercing.
Yes. The time it takes for it to close depends on your body
Probably less than when you got it new!The scar tissue is dead tissue,meaning the nerve endings are no so sensitive as they were when you first did your piercing.