mold behind drywall near plumbing 4

https://getgatewaywatermoldscope.halcyonledger.com/posts/hidden-mold-behind-drywall-lessons-from-a-st.-louis-water-damage-restoration

I pulled off a piece of baseboard near the bathroom sink and found a patch of black and green mold spreading behind the drywall, right where the plumbing runs through. The moisture from a slow leak in the pipe must have been feeding it for months, judging by the soft, crumbling sheetrock and musty smell that hits you when you open the wall.