Whenever we sustain an injury one of the body’s first reactions is to swell. Because of this we pierce you with a longer post to accommodate the inflammation you’ll experience as you begin to heal your new addition. At about 6-8 weeks, you’ll notice that because the swelling has subsided that your post is probably sticking out more. That’s your sign to come back in and purchase a shorter post that’ll sit flush with the tissue. This helps avoid extra snagging, mitigates the risk of migration (which is when the piercing shifts and becomes slanted), and most people find it aesthetically more pleasing as well.
If you had a septum, daith, navel or nipple piercing, a downsize is not required, but it may still be suggested by your piercer. You can always contact your piercer for a check-in appointment.