The answer to 'shower foul smell' is that a shower drain with a foul odor is typically caused by a buildup of bacteria, mold, or trapped debris in the drain. Common symptoms include a persistent unpleasant smell coming from the shower drain, and potentially slow draining water. To solve this issue, you can try a DIY drain cleaning solution, but if the problem persists, it's best to call a professional plumber to properly diagnose and address the root cause.
Foul shower smells are often caused by organic matter, such as hair, soap scum, or other debris, getting trapped in the drain and decomposing. This can create an ideal environment for bacteria and mold growth, leading to the unpleasant odor. In some cases, the problem may be more serious, such as a blockage deeper in the plumbing system or a problem with the sewer line.