Pink slime in your bathroom isn't mold: Doctor warns it could trigger lung and gut disease, also UTI
ETimes | July 29, 2026 6:39 PM CST
Ever seen a pink film coating your shower corner? That slime creeping along the grout is not soap scum. It's not rust from the drain or hard water build-up. No, it isn’t mold either. In fact, that pink slime can make some people sick.
Dr Mahyar Maddahali, popularly known as Dr Max, a physician, explained why this pink slime in the bathroom might be more concerning than most people think. The physician was reacting to a video posted by a woman who described the pink slime as mold.
Not mold
Dr Max was reacting to someone discovering the truth about pink slime on TikTok. The woman said, “Not me finding out on TikTok, this is not rust and hard water build-up. It's actually called pink mold and it can kill you. After finding that out, I ordered this scrubber right away so I could deep clean my tub slash shower.” While TikTok alerted her, it didn’t land right. The pink slime in the bathroom can cause disease, but it cannot kill you. And it is certainly not mold, Dr Max confirmed.
The pink slime is, in fact, bacteria. “If you see this pink slimy thing having fun in your bathroom, it's not mold. It's a bacteria called Serratia marcescens , and that pink colour is kind of like their poop,” the doctor explained. He added that this bacteria loves moist, alkaline environments, which means showers are basically a five-star resort for it!
Risk for people with weakened immune systems
That pink slime is a pigmented biofilm produced by a bacterium. It thrives in moist, alkaline environments, so your bathroom is its perfect home. It feeds on soap residue, shampoo remnants, and fatty substances in personal care products. The bacteria is, in fact, more common. It lives in soil, water, and even animal and human faeces.
Now, not everyone is at risk of catching disease. If you're generally healthy, Serratia marcescens won't hurt you. Most people exposed to Serratia either won't get sick or will develop only a mild infection.
But for those with compromised immune systems, this pink slime can cause health havoc. “If you have a weak immune system, it can cause lung infections , gut problems, or UTI,” the doctor said.
The bigger problem
The first thing to do, according to Dr Max, is to keep your bathroom ventilated. Open the bathroom window during and after showers. Run the exhaust fan for at least 20 minutes after you finish bathing. This will solve the moisture problem to an extent. Squeegee walls, glass, and tiles after use. Wash bath mats, towels, and shower curtains regularly. Avoid leaving damp loofahs, bottles, or towels in the shower.
The second step is to clean your bathroom regularly. “Clean and disinfect your bathroom regularly with natural and non-toxic products,” the doctor said.
Ensure your shower is disinfected. Cleaning the bathroom on a regular basis is important. Deep clean at least once a week, but ensure the shower floor is clean after every use. Regular cleaning and proper airflow will handle most of the problems lurking in your bathroom.
Dr Mahyar Maddahali, popularly known as Dr Max, a physician, explained why this pink slime in the bathroom might be more concerning than most people think. The physician was reacting to a video posted by a woman who described the pink slime as mold.
Not mold
Dr Max was reacting to someone discovering the truth about pink slime on TikTok. The woman said, “Not me finding out on TikTok, this is not rust and hard water build-up. It's actually called pink mold and it can kill you. After finding that out, I ordered this scrubber right away so I could deep clean my tub slash shower.” While TikTok alerted her, it didn’t land right. The pink slime in the bathroom can cause disease, but it cannot kill you. And it is certainly not mold, Dr Max confirmed.
The pink slime is, in fact, bacteria. “If you see this pink slimy thing having fun in your bathroom, it's not mold. It's a bacteria called Serratia marcescens , and that pink colour is kind of like their poop,” the doctor explained. He added that this bacteria loves moist, alkaline environments, which means showers are basically a five-star resort for it!
Risk for people with weakened immune systems
That pink slime is a pigmented biofilm produced by a bacterium. It thrives in moist, alkaline environments, so your bathroom is its perfect home. It feeds on soap residue, shampoo remnants, and fatty substances in personal care products. The bacteria is, in fact, more common. It lives in soil, water, and even animal and human faeces.
Now, not everyone is at risk of catching disease. If you're generally healthy, Serratia marcescens won't hurt you. Most people exposed to Serratia either won't get sick or will develop only a mild infection.
But for those with compromised immune systems, this pink slime can cause health havoc. “If you have a weak immune system, it can cause lung infections , gut problems, or UTI,” the doctor said.
The bigger problem
How to keep your bathroom clean and safe?How you clean your shower really matters. Keeping the pink slime, black mold, and a hundred other bacteria at bay is important. So how do you prevent the growth and clean your bathroom? There is, of course, a right way to clean it.
The first thing to do, according to Dr Max, is to keep your bathroom ventilated. Open the bathroom window during and after showers. Run the exhaust fan for at least 20 minutes after you finish bathing. This will solve the moisture problem to an extent. Squeegee walls, glass, and tiles after use. Wash bath mats, towels, and shower curtains regularly. Avoid leaving damp loofahs, bottles, or towels in the shower.
The second step is to clean your bathroom regularly. “Clean and disinfect your bathroom regularly with natural and non-toxic products,” the doctor said.
Ensure your shower is disinfected. Cleaning the bathroom on a regular basis is important. Deep clean at least once a week, but ensure the shower floor is clean after every use. Regular cleaning and proper airflow will handle most of the problems lurking in your bathroom.
READ NEXT
-
Comeback moves closer as Ismael Saibari returns to training
-
Taslima Nasreen’s return proves Bengal’s democracy: Suvendu Adhikari
-
J&K: Farooq Abdullah questions Kulgam attack timing, BJP hits back
-
Punjab Congress rift deepens as pro-Channi slogans mar party event
-
Karnataka HIV Cases Under Control, Reports of 7000 Infected College Students False: UT Khader
