A black ring around the toilet rim makes your toilet look unsanitary.
Black mold in the toilet.
Basically mold in the toilet bowl gets more energy when there is high glucose content in the urine and this is majorly in the case of diabetic individuals.
The black discoloration that forms often indicates a problem with the water such as mold spores bacteria or minerals.
If this is the case the mold will re establish itself every time you flush the toilet.
In other words it is a good source of energy for the fungus residing inside the toilet bowl.
You may end up scrubbing the black stuff off the toilet only to find that it has returned two to three days later.
The main black mold in toilet causes is the ventilation.
First flush the toilet and pour a cup of bleach into the bowl when the water begins to return.
You could have black mold in the water supply from the pipes or tank.
The water or moisture that leaves behind after you use it also has big part.
There could be cracks in the ceramic of your toilet.
Next using a scrubber begin to scrub around the toilet bowl and edges of the seat.
The water in your toilet tank should be clear and free of debris or contaminants.
Black mold can create health problems for those living in the house especially if they have immune system or respiratory problems.
Black molds thrive in areas that have a higher exposure to sugar.
The best method for removing black mold from the bowl is using bleach removers.
Rust on the pipes can also cause condensation which leads to black mold.
These cracks give black mold a place to stick grow and flourish.