The answer to 'bathroom smells bad' is that there are several common causes, including poor ventilation, mold/mildew buildup, clogged drains, and improper cleaning. Symptoms may include a musty or unpleasant odor that lingers in the bathroom. Solutions can range from simple DIY fixes like cleaning and deodorizing to calling in a professional plumber or mold remediation specialist for more serious issues.
If the smell is mild and intermittent, you can try DIY solutions like thoroughly cleaning the bathroom, using a deodorizing spray, and ensuring proper ventilation. However, if the odor is persistent, strong, or accompanied by visible mold/mildew, it's best to call in a professional cleaning service to properly identify and address the root cause.