mold behind drywall near plumbing 33

https://moldremediationstlouiscraft.juniperbrief.com/posts/hidden-mold-behind-drywall-a-st.-louis-rental-property-case-study

You know that musty smell in the bathroom? I finally found the source when I noticed the wall near the shower felt slightly damp. Pulling back a corner of the drywall revealed black mold creeping along the backside, right where the copper pipe runs. It must have been a slow leak for months, maybe years, because the mold had spread well beyond the wet spot. The gypsum was soft and crumbly in places, and the spores had a distinct, earthy odor that explained why the room always felt stuffy.