Washing with water is a much more effective and long-lasting way of cleaning, and removes more germs and bacteria than paper. Using water is a much more gentle and soothing way of cleaning after using the toilet and the feeling of freshness and cleanliness is incomparable to when using paper.

From a dermatological and hygiene perspective, water is widely considered more effective and hygienic than toilet paper for cleaning the body after using the restroom. Toilet paper, while convenient, primarily works by "wiping" and "absorbing," which can often lead to friction, irritation, and the incomplete removal of bacteria, potentially leading to issues like hemorrhoids or localized infections. In contrast, using a bidet or a "lota" (water vessel) washes the area thoroughly, removing more fecal matter and bacteria without abrasive contact. Many cultures in the Middle East, Southeast Asia, and Europe (notably Italy and Spain) have prioritized water-based cleaning for centuries. In modern Japan, the high-tech "Washlet" toilet has popularized this further by combining water cleansing with air drying. Furthermore, using water reduces the environmental impact associated with the massive deforestation and chemical processing required to produce billions of rolls of toilet paper annually. While toilet paper is a Western standard, the medical consensus suggests that water provides a superior, gentler, and more thorough level of personal cleanliness.