11-year-old children always hiccups, can be due to dietary factors, environmental factors, mental factors, gastrointestinal dysfunction and so on. 1. Dietary factors: for example, consuming too cold or too hot food will cause gastrointestinal tract stimulation and stress reaction, resulting in diaphragmatic spasm, which will cause hiccups all the time; overeating or drinking too much carbonated beverages will result in swallowing a large amount of air, which can also cause constant hiccups. 2. Environmental factors: staying in too cold environment for a long time will cause the abdomen to get cold and inhale cold air, which will lead to spasm of diaphragm, and then hiccups will occur. 3. Mental factors: excessive excitement, tension, anxiety and other emotions will stimulate the sympathetic nervous system, which will inhibit the peristaltic rate of the stomach and slow down gastric emptying, resulting in abdominal distension, hiccups symptoms. 4. Gastrointestinal dysfunction: it will lead to indigestion, and the food will be fermented in the stomach and produce a lot of gas, when these gases are gathered too much, it will be discharged in the form of hiccups. There are many reasons why children always have hiccups, it is recommended to consult a doctor in time for a clear diagnosis and targeted treatment.