The practice of cleaning our hands with soap after using the bathroom is primarily to remove potential pathogens and bacteria that may have been transferred from the environment or from bodily waste. However, the need for using soap on our buttocks after defecation is not as necessary for a few reasons:
Skin Sensitivity: The skin on our buttocks is generally less sensitive than the skin on our hands. Using soap on sensitive areas could cause irritation or dryness. Water alone is usually sufficient to cleanse the area.
Natural Protection: The skin in the anal area has natural protective mechanisms, such as the acidic pH and the presence of beneficial bacteria, which help prevent the growth of harmful bacteria. Excessive use of soap can disrupt this balance.
Toilet Paper and Bidets: In many cultures, toilet paper is commonly used to clean the buttocks after using the toilet. Additionally, bidets or water sprays are popular in some regions, providing a more thorough cleaning with water. In such cases, the combination of water and wiping is often considered sufficient for cleanliness.
That being said, personal hygiene practices can vary across cultures and individual preferences. Some individuals may choose to use soap or specialized cleansers for their anal area, especially if they have specific hygiene concerns or medical conditions. It ultimately depends on personal preference, comfort, and any specific recommendations from healthcare professionals.