<unk> emains one of the leading causes of preventable death in developing countries, especially among children under 5 years of age.<unk> s defined as an increase in the number of stools such as more than three bowel movements each day or the presence of loose stools comparative to normal stool consistency. Acute<unk> s when<unk> ccurs for less than 3 weeks in total and it is chronic when it lasts longer than three weeks. Hydration status plays an important role in the management of pediatric<unk> illness. The risk of dehydration due to fluid and electrolyte losses is inversely proportional to the child's age hence, the younger the child, the greater is the risk of dehydration. The type of dehydration whether it is isotonic, hypotonic, or hypertonic is usually independent of the responsible agent. Fluid loss due to<unk> nd vomiting can be life-threatening if it is as high as three times the circulating blood volume (80–125–250 mL per kg body weight per day). To keep the blood volume constant, the body usually extracts fluid from the intracellular space which can predispose it to dehydration. Complications and hospitalization due to dehydration can usually be prevented by the early and adequate oral administration of a rehydration solution (glucose-electrolyte solution) and normal food for the child’s age.
Diarrhea  
Vomiting  
Vomiting
Constipation  
Constipation
Thirst
Fatigue
Fatigue  