A doctor warns that the ‘pink slime’ in your bathroom isn’t what it seems—and it might point to a bigger problem.
That pinkish film near your sink or shower may look harmless, but don’t be so sure.
A doctor’s TikTok video has gone viral after revealing that the ‘pink slime’ lurking in bathrooms isn’t just unpleasant—it could be a red flag for a much larger issue.
Dr. Karan Raj recently shared a video after a user confessed they landed in the hospital for neglecting to remove the “pink mold” from their dormitory showers.
Addressing the clip, Dr. Karan clarified: “If you’ve noticed this pink slime lurking in your bathroom, it’s not mold—it’s bacteria.”
He explained that the pinkish residue commonly found around drains, sinks, and shower corners isn’t mold at all. Instead, it’s a type of bacteria called Serratia marcescens.
According to him, this bacteria can “spew bright pink all over your bathroom.”
Look familiar?TikTok/ @dr.karanr
“This bacteria thrives in damp, humid environments and feeds on fatty residues found in soaps and shampoos, which is why it tends to linger in your bathroom,” he explained.
According to Infectious Disease Advisor, this bacteria is widespread and isn’t limited to households. “It exists in soil, water, plants, and animals.”
“In both homes and hospitals, it often appears in the corners of wet showers or sinks, where its red-colored pigment (prodigiosin) makes it noticeable.”
While the doctor assures that this bacteria is “mostly harmless” for the average person, he still offers a cautionary note.
“You’ll want to avoid getting it in your eyes or any open wounds,” he advises.
However, for those with weakened immune systems—or individuals who are hospitalized or critically ill—exposure can be far more dangerous. Infectious Disease Advisor reports that this bacteria is “frequently resistant to multiple antibiotics,” making treatment especially challenging.
Yes, it’s bacteriaTikTok/ @dr.karanr
Dr. Karan explains that for those with weakened immune systems, Serratia marcescens can lead to infections in the digestive tract, urinary system, and even the lungs.
He adds: “If your home stays damp enough for pink slime to keep appearing, you might also be fostering other growths, like actual household mold, which could trigger allergies or respiratory problems.”
So, what’s the best way to prevent it from invading your bathroom?
@dr.karanr Pink slime club @Anna ♬ original sound – Dr Karan Raj
His top advice? Prevention is essential. “The first rule of Pink Slime Club is stopping the bacteria before it even appears.”
“By controlling its growth, you’ll also reduce the risk of other harmful molds developing.”
To keep this bacteria under control, Dr. Karan recommends ensuring your bathroom stays well-ventilated.
That means turning on an exhaust fan or opening a window when humidity levels rise.
And the most effective way to keep it at bay? Routine cleaning.
Use a disinfectant and thoroughly scrub your bathroom to prevent the bacteria from spreading.