Research you have done in GNRC on visualization of defecation disorder was conducted in GNRC's Imaging Nursing. In general, diarrhea and constipation, which are gastrointestinal symptoms, are among the most common symptoms that occur in daily life, even in healthy people. Although there are many causes of these problems, healthy people can prevent fecal incontinence or alleviate the symptoms by taking actions such as going to the bathroom or visiting a medical institution in advance. However, the elderly, whose cognitive and motor functions have deteriorated, may not be able to report subjective symptoms and may have difficulty defecating on their own. Therefore, in order to prevent fecal incontinence due to diarrhea, we wondered if there was a way to predict diarrhea in advance. Using an abdominal ultrasound imaging device, we conducted research to visualize the presence or absence of stool by non-invasively imaging the colon. Previous studies in the Social Cooperation Course of Imaging Nursing have reported the visualization of normal and hard stools by using echo. Therefore, we conducted research to establish a technology to visualize diarrhea.