Water clogged needs plumbing, I think?

[Rick1234!]

I have my problem in the bathroom. When I take a shower, first the water flows down to the drainage, then a moment later it will not flows and my bathroom now is flooded with water. It would take a whole day for the water flows down to the drainage. What do you think is the problem here?

[joed]

There is a blockage in the drain line.
Is it only the tub drain or do other drains run slow or backup into the tub?

[Rick1234!]

There is a blockage in the drain line.
Is it only the tub drain or do other drains run slow or backup into the tub?

the other drains runs slow, because no matter how I look on to the the other drains like the backup or the tub drain its still fine. Maybe there's something that stock up?