Pediatricians Among the common diseases and disorders that cause chronic diarrhea in **children**, the following can be listed: #### Read more: **Tehran pediatrician** ### Celiac disease Celiac disease is a digestive disorder that causes damage to the small intestine. This disease is caused by eating foods containing gluten. Gluten is a protein found in wheat, barley, and rye, and is often found in bread, pasta, pastries, and cakes. This disease causes chronic diarrhea in children of all ages. #### Gastrointestinal Infections Sometimes, infections are caused by harmful viruses, bacteria, or parasites that cause chronic diarrhea... Children get sick through contaminated water, drinks, or food, or through person-to-person contact.. Bacterial and parasitic infections that cause diarrhea do not go away in a short time without treatment... Allergy to milk, milk and soy products is among the most common food allergies that irritate the digestive system of **children**.... These allergies usually show themselves in the first year of a child's life.... Many children become allergic to milk, milk products and soy at the age of three.... Foods such as cereals and grains also cause allergies in the digestive system.. Children.... #### more Read: **Best Pediatrician** **Fructose intolerance** Fructose intolerance causes diarrhea after consuming foods containing fructose, such as the sugar found in fruits, fruit juices, and honey.. Fructose is added as a sweetener to many foods and drinks.. The amount of fructose that a child's body can absorb varies. Lactose intolerance causes diarrhea after eating food or drinks containing milk or milk products... A low level of lactase means the same enzyme that digests lactose or a problem with lactose absorption causes lactose intolerance... The most common type of lactase deficiency in **children** occurs over time and starts at the age of two.... The symptoms of lactase deficiency may continue until adolescence, in the prenatal age or during breastfeeding.. Babies may also be lactose intolerant for a short period of time... #### Gastrointestinal dysfunction In digestive system dysfunction, symptoms are caused by changes in the digestive system... **children** who suffer from digestive system dysfunction, constantly show symptoms, but their digestive system is not damaged and these digestive disorders are not a disease.. They are a set of symptoms that appear together... #### Read more: **The best pediatrician in Tehran** Two types of gastrointestinal dysfunction that cause chronic diarrhea in **children**: Diarrhea in toddlers, or functional diarrhea or chronic nonspecific diarrhea in children, is one of the most common causes of chronic diarrhea in toddlers and preschoolers. Children with this type of chronic diarrhea pass loose, watery diarrhea four or more times a day and have no other symptoms. Another example is gastrointestinal dysfunction, the most common symptoms of which are abdominal pain, discomfort, or muscle cramps with diarrhea, constipation, or both... gas... no weight loss, vomiting, or blood in the stool... this syndrome is one of the most common causes of chronic diarrhea in school-age children and adolescents... #### Vomiting Vomiting is a very coordinated reflux that is sometimes accompanied by increased salivation and abnormal belching.... Vomiting at different ages indicates different problems.... In infants, it can be a sign of gastrointestinal reflux, systemic infections, pertussis syndrome and middle ear infection... #### Read more: In **childhood** age, vomiting is a sign of acute intestinal infection, systemic infections, food and drug poisoning, gastrointestinal reflux, sinusitis, obstruction of the digestive tract and whooping cough... #### Methods of preventing vomiting Vomiting dehydrates the child and quickly makes him lethargic, so if vomiting occurs, see a ** specialist doctor** as soon as possible so that the cause of the vomiting is determined and the necessary treatments can be started. #### Feeding after vomiting in children Vomiting causes dehydration and so-called dehydration in the **child**... That's why, to prevent this complication, don't forget to give the right fluids... It is better in this case to give the right fluids in small amounts and often to the child... #### Read more: **The best pediatrician in Tehran** For this purpose, you can also use ORS (oral serum) solutions... if the child tolerates it, add solid foods to the child's diet.