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Your shower head may be full of bacteria, but how much should you actually worry?

The steamy comfort of your daily shower could be a thriving habitat, for billions of bacteria

Your shower head may be full of bacteria, but how much should you actually worry?
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StarsInsider
16/10/2025 09:00 ‧ 6 hours ago | StarsInsider

HEALTH

Hygiene

Showers are often viewed as sanctuaries of freshness, yet behind the soothing steam and warm water lies a hidden world teeming with life. Inside hoses and shower heads, bacteria and fungi quietly build biofilms, microscopic “cities” thriving in moisture and warmth. While most of these tiny inhabitants are harmless, some, like Legionella and Mycobacteria, can pose health risks.

Factors such as water quality, temperature, and materials all shape this unseen ecosystem. Understanding it can make your showers cleaner, safer, and more fascinating. Click on to discover what’s really lurking behind the spray.

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