mold behind drywall near plumbing 81

https://moldbehinddrywallplumbingplus.greyhavendaily.com/posts/the-hidden-problem-of-mold-behind-drywall-near-plumbing

There's a musty smell coming from behind the bathroom wall, and I finally peeked inside—yep, there's black mold creeping across the drywall right where the plumbing runs. A slow drip from a joint must've been feeding it for months. Now I'm looking at cutting out a big square of sheetrock, treating the studs, and replacing the insulation before it spreads further.