The only way something to rip is for something to start the process. You probably rubbed against something without realizing it. You should take it out until it starts to heal.
Your question "Can navel piercing migration be down to growth" makes no sense.
yes
If your jewellery is starting to look too long for the piercing the piercing is migrating and will open up at some point and drop the jewellery out.
If your jewellery is starting to look too long then your piercing is shallow and starting to migrate and will at some point in time fall out of the piercing.
This Is Called, Growing Out Or Rejecting. This Can Happen To Any Person That Gets A Navel Piercing. It Can Affect Younger People Because As You Grow, The Piercing Can Gradually Be Pushed To The Suface Of Skin, And You Will Have To Take It Out. But If This Does Happen You Can Get It Repierced, You Just have To Let It Heal First. x
if its new not alot.if its an older piercing it does not matter
As you would without a navel piercing, just be sure the navel piercing is the last thing you clean before you exit the bath.
Well if you are doing your aftercare correctly you should be getting the piercing wet every time you clean the piercing.
She can still keep her navel piercing in.
If it hangs or dangles chances are good that it will retain a piercing. Placing the navel piercing off to the side will be problematic for aftercare and irritation during the healing process. If you haven't had a navel piercing before then stay with something that is simpler to care for and will give a result a navel piercing is supposed to give.
Navel piercing could cost anywhere between Rs 350 and 500 with navel jewelery done by experienced piercer.
If you want to wear a regular navel ring in your inverse piercing, turn the navel ring upside-down, so that the larger gem is in the navel, and the smaller gem is below.