The answer to 'why is my tile greasy' is that tile floors can become greasy due to a buildup of dirt, soap scum, and other residues over time. This can happen from regular foot traffic, spills, and the use of improper cleaning products or techniques.
Some common symptoms of greasy tile include a sticky or slippery feel underfoot, visible discoloration or haze on the tile surface, and difficulty keeping the floor clean. To address this, you'll need to deep clean the tile and grout to remove the accumulated grime. This may require the use of specialized tile cleaners or a professional cleaning service, depending on the severity of the issue.