Why do young children with acute gastroenteritis only vomit but not have diarrhea?

For children, because their stomachs and intestines are not yet mature, they are prone to gastrointestinal diseases if their family members do not take good care of them. Clinically, the incidence of acute gastroenteritis in young children is still very high, which is a headache for some parents. In fact, acute gastroenteritis in children is not a difficult disease under today's medical technology. So what is the cause of acute gastroenteritis in children that only vomits but does not defecate?

Causes

1. Intestinal infection factors

Generally speaking, children suffer from acute gastroenteritis because of intestinal infection, often caused by viruses and bacteria. Rotavirus infection is more common in autumn and winter. Pathogenic Escherichia coli is the most important bacterial infection.

2. Extraintestinal infection factors

Inflammation of the upper respiratory tract, nephritis, otitis media and other diseases outside the gastrointestinal tract may cause acute gastroenteritis due to fever and absorption of bacterial toxins, which may reduce the secretion of digestive enzymes and increase gastrointestinal motility.

3. Non-infectious factors

(1) Climate factors Changes in climate, such as too cold weather increasing gastrointestinal motility, or too hot weather reducing the secretion of gastric acid and digestive enzymes, can also cause acute gastroenteritis.

(2) Improper feeding If infants and young children are fed improperly, such as eating too much or too little, eating too much starchy food too early, or suddenly changing food or weaning, they may suffer from diarrhea and cause acute gastroenteritis.

(3) Allergic factors: Allergies to milk, eggs, wheat, and nuts may cause symptoms of acute gastroenteritis.

Clinical manifestations

If acute gastroenteritis causes mild diarrhea, the patient is generally in good condition, with less than 10 bowel movements a day, which are yellow or yellow-green in color, with a small amount of mucus or white soap-like stool, and not much feces. Sometimes the stool is "egg drop soup-like". Acute gastroenteritis can also cause severe diarrhea, with bowel movements several to dozens of times a day. Large amounts of watery stools, small amounts of mucus, nausea and vomiting, loss of appetite, and sometimes vomiting of coffee-like substances. If hypokalemia occurs, there may be abdominal distension and symptoms of systemic poisoning; such as irregular low or high fever, irritability and subsequent lack of energy, confusion, and even coma.