What Causes Yellow Stains On Toilet Seat

Yellow stains are the ugliest thing you want to see in a toilet seat. No one in the world has not faced this stain at least once. Mostly we see it in public toilets in schools, colleges, hospitals, or bus stations.

But if you have seen it in your house toilet, then it is a matter of headache. The headache goes even higher when you try to remove them and see that they don’t give up easily.

What Causes Yellow Stains On A Toilet Seat

Well, no matter how much hygiene you are, stains can occur for many reasons. So, let’s discuss some common causes.

What Causes Yellow Stains On Toilet Seat


The most common reason for yellow stains is urine. If you neglect cleaning the seat after every urination and continue to use it again and again, yellow stains will surely come.

Remember one thing, urine is not water. So, flush the toilet properly after every use.

When urine gets exposed to air, oxidation occurs. And therefore yellow stains appear. The stains take deeper color gradually.

So, you should never neglect cleaning the toilet. Neglecting will make it harder to remove the yellow stains.

Hard Water

Hard water is greatly responsible for yellow stains on the toilet seat. You might be surprised to hear this. Don’t be, because we are talking about hard water, not pure drinking water.

Hard water contains minerals, iron, magnesium, and calcium. If the amount of these elements are high then the water is harmful to your toilet and pipeline as well.

It will create yellow stains and damage the toilet seat too. 


A rare reason for yellow stains is the open sunlight. Sunlight contains UV rays which are harmful to almost everything. 

Well, these are not actually yellow stains rather the sunburn turns the white color into yellow eventually.

So, if anyhow you see sunlight on your toilet seat, take immediate action. Otherwise, it will ruin the entire look of your toilet.


This is another common issue. If you are using a toilet seat for many years, normally, the white color will change in time. It will change gradually over time and become brown or light yellow. 

If the seat is made of plastic material then it will lose color even faster. So, this issue can only be solved by replacing the seat with a new one. However, you can just extend the time by cleaning the seat regularly before it starts getting yellow. 

How To Prevent

Prevention is better than cure. So, before we get into the solution to your yellow stain problem, let’s discuss some prevention ideas.

  • The most important thing is to maintain regularity in cleaning. No matter what! you must keep the toilet neat and clean. Make a routine and clean the toilet regularly. Trust me, this is the best prevention for any stain problem.
  • Don’t forget to flush the toilet properly after every use. This is very important. People don’t flush after peeing which can also cause stains.
  • Scrub the toilet seat with a good toilet brush. Do it on a regular basis. Do it every day if possible.
  • Don’t use harsh cleaners. They can damage the material of the toilet seat.
  • As you already know that water containing iron also causes yellow stains, try to change the water line if you find too much iron, magnesium, and calcium in the water. But, changing the line is not possible for most people. So you can use a carbon filter to get rid of those harmful elements.
  • Disinfect the toilet and entire bathroom regularly. It helps to maintain a hygienic environment. This is good for the toilet and for your family too.

How To Clean Yellow Stains On A Toilet Seat

As you did not know how to prevent yellow stains and your toilet has already got some, you need to think about removing them. The longer you keep the stains on the seat the deeper their color will be. So, don’t waste any time and take immediate action. Let’s find out some ideas for cleaning yellow stains.

Baking Soda

Yellow stain is not an easy thing. This kind of stain shows in a very light color but removing even that light color is very difficult.

At this point, you must thank baking soda for its spot-removing power. With baking soda, you can deal with any kind of stain. 

Spread one cup of baking soda into the toilet seat. Wait for a few minutes and then scrub the whole area hardly. At last, flush to rinse and see the magic.

You can mix baking soda with vinegar or warm water to make a stronger solution if needed.

Use Vinegar

Vinegar works the best for removing yellow stains. And this is the easiest method. Just pour 1 cup of vinegar into the toilet bowl. Try to cover all the areas, especially the spotted areas. 

Now wait for at least 15minutes and then scrub the bowl properly. At the end flush the toilet and see if any stains are remaining. Just repeat the process to remove the remaining stains.

Use Of Bleach

Bleach is another powerful stain remover. Sprinkle some bleach over the yellow stains and wait for a few minutes. Better, you can mix bleach with water and then spray the solution into the spots.

Take a hard brush and give the toilet seat a proper scrub. Now wash it with water. Hopefully, there is no stain remaining.

Use Of Coke

Don’t be surprised! Coke indeed works great in stain removal. The reason is coke contains Phosphoric acid which can remove stains.

Just take a bottle of Coca-Cola from your freezer or buy one from the nearest store. Then, pour it into a bucket. Now take a towel and soak it into the coke. Place the towel on the toilet seat. Wait for 20-30 minutes and scrub out the stains.

Finally, wash the seat with water. Are you seeing yellow stains anymore? 

Toilet Cleaner

Not every toilet cleaner can remove yellow stains. So, mention your problem to the storekeeper and tell him to give you the best one. 

Some popular brands are Clorox Toilet Cleaner, Lysol, etc. You can try one of these cleaners too.

Borax Powder

Go to a nearby hardware shop and bring some borax Powder. Apply the powder over the stained areas. Wait 20 to 30 minutes and then rub the areas with a brush. The stains will be gone in no time.

For the hidden areas, you can use borax paste. You can make it just by mixing water with borax powder.

Napisan powder

Napisan powder can also be useful in yellow stain removal. If you have some in the house, then apply it to the spotted areas and give a strong brush. The stains will be removed very easily.

Trisodium Phosphate

Take 4 liters of warm water and mix 1 tablespoon of Trisodium Phosphate. Now soak a soft cloth into the solution. Put it on the toilet seat and wait for a few minutes. Finally, rub the decolorized areas.

Lemon Juice And Essential Oils

We have used a lot of chemicals, Now let’s check out this organic method of stain removal. This method is more suitable for those people who love natural products.

All you need is some lemon juice and essential oil. Take one cup of lemon juice and add 15 to 20 drops of essential oil and mix them properly. Spread this solution to the affected areas.

The final step is, as usual, scrubbing and flushing. However, you may need to repeat the process multiple times to remove the stains entirely.

Frequently Asked Questions

How Do You Get Yellow Stains Off Toilet Seat?

To get yellow stains off the toilet seat you can follow our instructions discussed above. However, you may need to apply one or multiple methods regarding the condition of the stains.

What Causes Toilet Seat Discoloration?

The discoloration happens mostly because of not cleaning the toilet seat regularly. Sprinkles of urine, sweat from our body, and other dust stick to the seat and by the course of time, they change the color.

How Do You Get Urine Stains Off A Toilet Seat?

You can just use baking soda to remove urine stains. However, make sure to flush the toilet properly after every use to avoid urine stains.

Final Thought

Yellow stains are common in bathrooms and toilets as well. You already know what causes yellow stains on toilet seats. And you also know how to remove them, you can now deal with these rustic stains easily.

We have discussed some of the most useful methods of yellow stains removal. Hopefully, they will solve your problems.

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