Modern medicine believes that frequent urination in the elderly is not only related to drinking too much water, mental stress or climate change, but also has different degrees of arteriosclerosis with kidney soybeans in the elderly, which affects the concentration and concentration of urine. Reabsorption process. This also leads to frequent urination. The practice is: kill the duck first, remove the hair, wash and remove the belly, hide the head and feet, and put the medicine in the duck's stomach with gauze. Put it in a pot, add water and stew for about an hour, add some salt and often drink soup.