Four-year-old children farting with water is due to diarrhea, gastrointestinal tract dysfunction, sphincter dysfunction and other conditions. 1. diarrhea: four-year-olds farting with water may be due to bacterial and viral infections, cold, intestinal inflammation and other conditions leading to diarrhea, usually manifested in watery stools, easy to fart with water. 2. gastrointestinal dysfunction: due to the imperfect development of the digestive system of four-year-old children may be affected by the environment, improper diet and other circumstances, gastrointestinal dysfunction occurs, may also appear farting with water symptoms. 3. sphincter dysfunction: if the child’s own muscle control ability is relatively poor, resulting in sphincter dysfunction, and then appear fart with water. There may be other reasons for a four-year-old child to fart with water, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.