Shower leak on the 2nd floor
I have a tile shower on the second floor. I noticed some water stains around the light fixture below it on the first floor.I regrouted the bottom of the shower so there should be no leaks there. I ran a snake down the drain and it seems clear. I took down the light and it still leaks after taking a shower. It is not a large leak only a puddle of water the size of a 50 cent piece comes down from the ceiling box. I also looked down the drain and do not see anything but water sitting in the drain. Is the wtaer supposed to be sitting in the drain? Do I take down the ceiling to check the pipes for leaks?