If children have egg-shaped stools, most of them are caused by viral infections such as rotavirus or norovirus. When children are infected with rotavirus or norovirus, the virus invades the intestinal tract, causing an increase in intestinal fluid secretion, accelerated intestinal peristalsis due to inflammation, damage to the intestinal mucosa of children, and a decrease in fluid reabsorption in the intestinal tract. These factors can cause dilute and egg-flake stools in children, which can lead to dehydration and electrolyte disorders if not treated promptly. Therefore, it is important to test the stool routine and rotavirus in children who have egg-flake stools.