How Long Does a Popped Implant Take to Deflate?

If the leak is sizable then the deflation is rather immediate.  If you have a smaller or slower leak then that depends on many factors to determine when the implant will eventually go flat.   This does cause any problems other a cosmetic problem from the obvious difference in breast size.

Dr. ES

The other answers here are all good, but fail to mention that, depending on how long you have had your saline implants, replacement costs might be covered by your implant manufacturer, whether or not you purchased an extended warranty. Check with your surgeon, this might be something that you can have dealt with much sooner than you anticipated. If you deflate your implant with a needle, the manufacturer may refuse to provide a no-charge replacement implant (they check the deflation site with a scanning electron microscope)!

Of course, I would recommend that you consider replacement with the newest generation of cohesive silicone gel implants that cannot leak or deflate. The cost is somewhat higher, but the replacement cost of saline would be deducted from the silicone implants costs--you would be responsible for the difference. Again, talk with your surgeon! Best wishes!

All it takes to deflate an implant is a needle stick which is not unlike drawing your blood. The saline can aspirated (sucked out) or it can leak into the body where it will be rapidly absorbed.  Unless you need a capsulectomy, it should absorb rather quick.