Water seepage in the bathroom leads to the fall of the wall skin

Definitely yes, as long as the upstairs bathroom leaks, because the cement is not a whole solid body after forming, but there are many capillaries, at this time the water will penetrate into the capillary of the cement layer, when the amount of water is large. It has to find a breakthrough, just encountered the putty wall or latex paint wall block, so the water can't come out, which leads to wall bubbles.

I have encountered such a problem before, I suggest you buy a house online to try the water leakage treatment of the doctor, and I have done it this way.

It may be that the water pipe in the bathroom wall is leaking, so the tiles should be shoveled off, checked and treated, and the waterproof treatment (such as brushing waterproof paint) on the wall should be pasted before the tiles, and the gaps in the tiles need to be treated with waterproof caulk.

Don't understand what you're asking? Is it the water seepage in your bathroom or the seepage of water from the upstairs that caused the wall skin to fall off.

Then renovate it, so that she doesn't give birth to water and doesn't fall off, in fact, I don't understand this problem, so you don't need to refer to my brain.