Water pools at floor and wall joint in Bathroom

I have noticed water pooling at the wall and floor joint just outside my bathroom shower. I checked carefully to make sure it just did not splash out and on to the floor but that was not the case. It is enough water to seep under the wall and pool up in the room on the other side of the wall. When I removed the base board it was easy to see it was coming out the joint at the wall and floor. Here is the strange thing. I can dry it up with a towel and no more leak. I ran several test and it does not pool up while I'm running the shower... it only when I turn off the shower that about a minute or so later I see the water. The shower seem to drain fine. At first I thought it might be a busted water line in the foundation but that would leak all the time as long at the water was on at the street. I also thought maybe a partially clogged main drain but the shower seems to drain fine. I went up in the attic to see if there was any water lines leak and maybe running down the walls but no sign of water up there. Again, it only leaks after I run the shower for a while and then about a minute or so after I turn the water off, I see the water pool up. Anyone ever see something like this before??

this sounds like something i see at work (university)there is a plalastic triangular piece that sticlks to youshower wal and the top of the tub to prevent moisture or splash over......now we do something so the kids cant move the curtain closest to the shower head....

If it 8s a stand up shower stall, you could have a leak in your pan (happens often to lead pans after about 50 years). The pan is supposed to catch any water that gets through the tile floor, and then that water is directed into the drainpipe. Your weight could be enough to push that water up over the edge of the lead pan, and cause a leak like you are describing.

Geofd said:

this sounds like something i see at work (university)there is a plalastic triangular piece that sticlks to youshower wal and the top of the tub to prevent moisture or splash over......now we do something so the kids cant move the curtain closest to the shower head....

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is it a shower or tub?????is it tile?????if tile is ist in good shapemalong with the grout that also can cause leaks