The answer to 'tile discolored' is that there are several common causes for tile discoloration, including mineral buildup, improper cleaning, and excessive wear and tear. Symptoms can include fading, staining, or a dull appearance. Solutions may involve deep cleaning, re-sealing, or tile replacement, depending on the severity of the issue.
For minor discoloration, homeowners can often address the problem through proper cleaning and maintenance. However, for more significant or stubborn discoloration, it's best to consult a professional cleaning technician who can properly diagnose the cause and recommend the most effective solution.