What it looks like
Fresh 'blowout': colour blurs outward during the session as pigment is pushed into the looser deep dermis. Late migration: a formerly crisp lip develops a soft pinkish shadow a millimetre or two outside the border over the following year, or the whole colour looks like it has 'bled'.
Causes
Needle depth into the reticular dermis; too many passes over one spot; leaning on the machine; stretching the lip unevenly; overly runny pigment; and simply implanting more pigment than thin lip tissue can contain, so the excess disperses.
Prevention
Correct shallow depth read from fluid and feedback; pixelated layering instead of packing; light, consistent pressure and three-point stretch; appropriate pigment consistency; and stopping at a sensible saturation.
Fixing it
Minor haloing can fade on its own or be camouflaged. Significant migration or blowout usually needs saline or laser lightening before any re-work, and sets a realistic expectation that the lip may never be as crisp as a correctly placed first attempt.
