The 15-year-old child vomiting as soon as he eats is considered to be caused by acute gastroenteritis, intestinal obstruction, gastrointestinal cold and other factors.
1. Acute gastroenteritis: it can be caused by viral and bacterial infections or non-infectious factors, with clinical manifestations of nausea, vomiting, abdominal pain, diarrhea and so on, and it can also appear as soon as you eat something and vomit.
2. Gastrointestinal flu: it is a gastrointestinal dysfunction caused by viruses, which can be characterized by nausea, vomiting, diarrhea, fever and other symptoms, and can be accompanied by nasal congestion, runny nose and other cold symptoms.
3. Intestinal obstruction: it is the obstruction of the passage of intestinal contents caused by various reasons, and this kind of situation can also cause vomiting after eating.
In addition, if a sexually active 15-year-old child vomits after eating, it is also necessary to consider that it may be caused by pregnancy. It is advisable to go to the hospital and ask the doctor for a diagnosis of vomiting after eating.