That pink slime in your bathroom isn’t soap Speaking on TikTok, Dr Karan Rajan explained that the pink slime is a buildup of a bacteria called Serratia marcescens which loves damp, moist conditions.

Have you ever noticed some pink-looking slime in your bathroom, and thought it was mould? A doctor has now issued a warning, as it turns out it's something which could cause infections.

Dr Karan Rajan has warned about the pink slime you can find in parts of your home – especially bathrooms. It's not just unsightly, it could also pose serious health risks if you're not careful.