Many people do it to save time, reduce water use, or enjoy more privacy. However, doctors urge caution for several reasons:

1. Bacterial & Mold Growth
While urine is sterile upon release, the warm, moist shower environment encourages bacteria and mold. For women, urine splashback can introduce bacteria to the vaginal area, potentially causing UTIs or yeast infections.

2. Hygiene Issues
Showers are meant for cleaning, not waste elimination. Urine can mix with soap scum and grime, creating unsanitary surfaces—especially in shared bathrooms.

3. Pelvic Floor Risks
Peeing upright may prevent full bladder emptying and weaken pelvic muscles, increasing UTI risks and bladder issues.

4. Skin Irritation
Urine contains urea and ammonia, which can irritate sensitive skin.

5. Habit Concerns
Making this a routine may blur hygiene boundaries and disrupt healthy bathroom habits.

Exceptions include those with mobility issues or post-surgery guidance. Regardless, frequent cleaning is vital.

Bottom Line: Though convenient, peeing in the shower may do more harm than good. Stick to the toilet and maintain strong hygiene habits for better health.