Water around the base of a toilet often points to a failed floor seal, movement of the bowl, or a leak from another part that runs down to the floor. Stop using the toilet until the source is clear because repeated leakage can damage flooring and the structure below.
Dry the area and note when the water appears
Dry the floor completely and watch whether water appears during a flush, while the tank refills, or even when the toilet is unused. Timing helps distinguish a failed base seal from a supply connection or condensation.
Check whether the toilet rocks
A toilet that rocks can break the drain seal even when the bolts look tight. Do not keep tightening aggressively; porcelain can crack, and the underlying problem may be an uneven floor or damaged flange.
Rule out leaks running down from the tank
Run dry tissue around the shutoff valve, supply line, tank-to-bowl connection, and tank bolts. A small drip can travel down the porcelain and pool at the base, imitating a failed floor seal.
A flush-related base leak usually requires removal
If water emerges at the base right after flushing and is not coming from above, the drain seal likely needs inspection. Toilet removal involves a heavy fixture and checking the flange and floor; a plumber is appropriate if you are inexperienced or water damage is present.