Shower drains can start to smell for several common reasons. Mold or mildew might be growing beneath the drain cover. Your p-trap could be malfunctioning, allowing sewer gas to rise up through your pipes. Or there could simply be hair or grime stuck in your shower drain strainer. Luckily, most of the reasons your shower drain smells so bad right now are pretty easy to fix. Whether your drain smells like mildew or sulfur, we’ve listed the most likely causes of your stinky problem below. By following these tips, you should be able to find and remove it no problem. Let’s start with your st...