Flushing the toilet after urinating is an automatic action for most of us. We do it without thinking, convinced that it’s synonymous with cleanliness, hygiene, and good manners. But what if you were told that this common habit could be a mistake? 

In times where drinking water is a valuable and increasingly scarce resource, and where environmental health is at stake, some everyday habits need to be rethought. One of them is precisely this: flushing the toilet every time we urinate. 

Below, we’ll tell you why this seemingly harmless gesture might not be as healthy or sustainable as we think, and what alternatives exist to protect both your environment and your wallet. 

 The aerosol effect: what you don’t see can be harmful 

When we flush the toilet, especially with the lid open, the water doesn’t just flow down… it also sprays. This phenomenon is called the aerosol effect, and it refers to the thousands of droplets that disperse into the air after flushing. The problem?These microdroplets can contain traces of urine, bacteria, and other microorganisms that lodge on nearby surfaces, such as:

Toothbrushes 

Face towels 

Cosmetics or personal hygiene products 

Cell phones or other items often left in the bathroom 

Although many people don’t notice it, this invisible spray can increase the risk of exposure to bacteria like E. coli, especially in small, poorly ventilated bathrooms. Therefore, a basic hygiene measure is to always close the lid before flushing the toilet.