I've notice that my textured ceiling is blistering surrounded by the bathroom. Its not staining beneath the crumbling portion Its not stained anywhere on the ceiling. Does that necessarily mean its...

Its not stained anywhere on the ceiling. Does that necessarily mean its a dribble there?
Answers:    No---it is most imagined peeling because of moisture build-up from the shower tub,etc.....

If you don't have a vent(fan)you might want to look into installing one,or if you enjoy one-letting it run longer after a shower.That or opening the glass a bit.

As you can see,textured ceilings and bathrooms don't mix-for that justification
no - decrease humidity surrounded by area.