Fixing this issue is simple.
My bathroom sink pipes smell.
The first possible cause of a sewage smell in your bathroom is by far the easiest to fix and more likely to occur in bathrooms where fixtures haven t been used recently such as the sink in a guest bathroom or the tub in a bathroom with a separate shower.
It is always a sewage like odor or rotten egg smell.
The possible reason is clogging of the pipe that leads to dry p trap.
Sometimes it happens that the sewer smell in the bathroom comes from the sink.
If you notice a foul odor coming from the overflow pipe in your sink the pipe is probably harboring a layer of gunk and a colony of bacteria.
If the odor emanating from your bathroom sink smells strongly of sewage then sewage may be the actual culprit.
Like many others your sink probably has a hole at the top that allows fast drainage when the sink is full of water.
Remember all your water waste eventually drains to the same place so the runoff from your bathroom sink will be sharing a pipe with sewage down the line.
If your tub shower or sink is not used frequently the water inside the pipe often evaporates and allows the gases to pass through into your bathroom causing the unpleasant smell.
Luckily keeping the drain clean and odor free is a fairly easy task and requires only a couple of inexpensive household ingredients.
Pour it down the shower and sink drains to eliminate any gunk that may have built up in the pipes and caused the stink.
Pour water down the tub or sink drain to refill the pipe.
This is the best way to clean sink drains.
If you smell such as an odor there is a likelihood of bacteria builds up down the drain and this is also likely going to make your bathroom sink clogged.
Carefully follow the instructions on the packaging and make sure you wait.