Communal showers:  Roommates, family members, or partners may not be keen – it’s more a matter of social norms and consent than health.

Dirty showers:  If your shower is rarely cleaned or has porous grout or tiles, urine can leave a residual odor over time.

Infections:  While we’re not medical, certain conditions (like urinary tract infections) could theoretically increase the risk of spreading bacteria—especially in communal showers.

Safe etiquette when showering and peeing

Aim directly at the drain.

Let the water run over it for a few seconds.

Clean your shower regularly (which you should do anyway).

Well, let’s leave the health aspect aside.

Here’s a look at peeing in the shower from social, environmental, and even philosophical perspectives:

Environmental perspective

Save water:  One toilet flush = ~1.6 gallons (modern toilets). One pee per day in the shower = ~584 gallons saved/year.

Energy use:  Fewer flushes mean slightly lower energy consumption in water treatment plants. Small actions, but on a large scale (millions of people), add up.