Toilet stains can happen easily, caused by many things such as urine, fake tan, dead skin, and even some cleaning products. And there's nothing more embarrassing than someone asking to use your loo, and getting the sinking feeling that you've not got around to scrubbing the stains off.
But fans of cleaning sensation Mrs Hinch, aka Sophie Hinchcliffe, have shared their methods of stain removal - and there's no bleach required which will be a relief to those looking for alternatives to chemicals.
Someone took to the Mrs Hinch Cleaning Tips Facebook page to ask how to remove the unsightly stains.
One stressed mum wrote: "Tips for getting urine marks off the toilet seat, please? Bleach is not sufficient! Houseful of boys."
And most people noted that she'd said bleach wasn't sufficient, but many told her to avoid it anyway, with some saying that it may have even caused the staining.
One wrote: "It might be the bleach that is actually the issue! I had a new en-suite and within six months the toilet seat needed replacing.
"The yellow marks were caused by using bleach to clean the toilet and then flushing with the toilet seat down. A magic sponge removed some of the marks."
Another said that "Cif and The Pink Stuff" worked and had caused the staining to "fade." They also said that they wouldn't be using "bleach or wipes again."
Others referred to bleach as the "culprit" of the stains, saying that they "avoid it as much as possible."
As an alternative to bleach, people recommended a magic eraser, also known as a 'magic sponge', and these can be purchased from Wilko for as little as £2 for a pack of two, reports the Express.
Someone wrote: "I take my toilet seat off. I wash it three times a week and give it a good wash. Do not use bleach, it makes it turn yellow. Magic sponge and a bit of Cif."
Have you ever tried a magic sponge? Let us know in the comments.