Can LVP go in a bathroom?

Yes, and the confusion around this question runs in two opposite directions at once. Naming both is the fastest way to get to the honest answer.

The misconception, and why it is easy to believe

One version of the myth says vinyl does not belong in a bathroom at all, and it usually traces back to older peel-and-stick tile or thin sheet products that curled at the seams and let water underneath within a few years. That memory is real. It is just not describing what a modern rigid core plank does, and anyone whose last experience of vinyl in a bathroom predates the rigid core plank is arguing with a product that is no longer on the floor.

The other version runs the opposite way and is far more common now: the plank is waterproof, so the room must be too, shower included. That one is the more expensive mistake, because it treats a floor material as if it were a room-sealing system. It is also the one that shows up as a real decision rather than an opinion, since it is what leads someone to run plank into a shower stall, or to skip thinking about the fixtures entirely on the grounds that the box already said waterproof.

What is actually true

The rigid core in a modern plank does not swell, cup or come apart the way an organic material does when it gets wet, and that part of the myth-busting is simply correct. A splashed sink, condensation off the mirror, bare feet dripping from the shower, none of it is a threat to the plank itself the way it would be to hardwood or laminate. The bathroom page names the three materials that genuinely work in this room, and luxury vinyl plank is one of them.

What is not true is the leap from a waterproof plank to a waterproof room. Waterproof describes the material in the field of the floor. It says nothing about what happens where the floor meets something else, and a bathroom is mostly junctions. Water that finds its way underneath at one of them does not care that the plank itself would have shrugged it off on the surface, because by then the water is not on the plank any more, it is under it.

What follows once the plank and the room stop being the same thing

Luxury vinyl plank is a genuinely good floor for a full bathroom, the part outside the shower where a person stands, dries off and gets dressed. It is not the right surface for inside the shower stall itself. That distinction is not vinyl being inconsistent, it is the same logic the whole showroom applies: tile takes the shower and the standing-water surfaces, plank takes the room around them, because tile is built for water that sits rather than passes through.

It also means the edges rather than the field of the plank are where a bathroom floor is won or lost, which the bathroom page settles in full.

The bathroom that asks the most of this

A full bathroom built around a curbless, walk-in shower is the hardest version of the question, because there is no threshold physically stopping water from reaching the floor beyond the shower itself. The plank does not change. What changes is how much of the room is behaving like a splash zone rather than a dry floor, and how much planning the junctions need before anything is ordered. It is worth naming that shape of room out loud early, because it is the case where an assumption about waterproofing does the most damage.

Texture and finish matter here too, since a smooth, glossy plank behaves very differently under a wet bare foot than a matte one with real embossing does, and that is a separate conversation from waterproofing entirely. It is worth raising at the same time as the junction planning rather than treating grip as an afterthought once the color is already picked.

What to settle before you order

Name which kind of bathroom this actually is: a powder room, a full bath with a standard tub and shower, or a curbless walk-in. Then walk the room and note every place the floor meets something else, because that list is what a measure checks in person rather than off a plan. Whether the plank is waterproof is the part you already know. What that word does and does not cover is worth reading in full before you decide the rest, and how texture and finish affect a wet floor is covered on the bathroom page rather than repeated here.