The answer to 'bathroom moldy' is that mold growth in the bathroom is a common problem caused by excess moisture and poor ventilation. Symptoms include visible mold on surfaces, a musty odor, and potential health issues for those with mold sensitivities. To solve this, you'll need to identify and address the root causes of the mold.
Start by ensuring your bathroom has proper ventilation, such as a working exhaust fan, to remove moisture after showers. Wipe down surfaces regularly with a bathroom cleaner containing bleach to kill and remove existing mold. For larger areas of mold growth, you may need to use a mold-killing solution or have a professional mold remediation company assess and treat the problem.