Core Insights - The article discusses the development and functionality of smart health toilets, which can analyze human waste to monitor health conditions and provide alerts for abnormalities [3][5][7]. Group 1: Smart Health Toilets - Smart health toilets have emerged over the past decade to meet the demand for non-invasive and low-cost health monitoring through urine and stool analysis [3][5]. - These toilets utilize advanced technology to identify users and collect health data, which is crucial for personalized health tracking [5][7]. Group 2: User Identification Technology - Initial designs included fingerprint recognition, but this was found to be ineffective due to various user interactions with the toilet [5][9]. - Researchers have identified unique features around the anal area, referred to as "butthole patterns," as a means of user identification [5][7]. - Alternative designs, such as smart toilet seats with pressure sensors, have been developed to enhance user identification while minimizing privacy concerns [9][11]. Group 3: Data Privacy and Security - The information collected by these smart toilets is encrypted and uploaded to the cloud, ensuring that original images are not accessible to anyone, including doctors [7][9]. - Despite initial skepticism regarding the necessity of smart health toilets, similar innovations in the past have eventually become standard in many households [11].