Is the pink soap scum in my bathroom mould, or something else?

Black mould showing up in a bathroom usually signals a proper clean is in order.

But have you ever noticed a pink or orange-coloured substance in the tile grout or around taps?

In most cases, it's one of two things, explains Michael Taylor, an expert in mould and adjunct academic with Flinders University.

We look at what those are, how to deal with them, and whether they can make you sick.

When it's mould

The pink slime may be a type of micro fungi , also called a mould , named Rhodotorula , explains Dr Taylor.

"It's more like a yeast. It makes a slimy coating around itself and will happily live in wet environments."

He says Rhodotorula can be found almost anywhere , including on and in the wet bits of your skin.

While Rhodotorula poses no risk to healthy people , D