The roof is leaking, and there is no water pipe at the location of the leak. The bathroom is not in

Water seepage around the upper and lower water pipes on the roof of the bathroom is a concentrated manifestation of leakage in the upstairs bathroom, and it is not necessarily (generally not) that there are cracks in the sewer pipes, and there is generally a cushion between the floor base and the surface layer of the bathroom, that is to say, for the water, the floor base and the surface layer are passable, and the water can penetrate and move freely, and generally speaking, the water is most likely to leak from the gaps around the sewer pipe to the downstairs. To deal with it, you still have to analyze the leakage parts upstairs first, or use paint, permeable waterproofing to deal with the possible leakage, otherwise you have to do it all!

Explain that the leak is the lowest part of your roof, because water will flow from the leak to the low-lying area and seep down. It is advisable to check whether the pipes, sewers, sinks, toilets and bathtubs upstairs are leaking, or that there is no problem with the waterproofing of the bathroom.

Open the ceiling and look inside, it's the leaking water!