It is usually mild and often settles within 48 hours , but gastroenteritis can be serious ,especially for babies and young children. The main danger is dehydration. Dehydration occurs when fluids lost from the body are not replaced. Diarrhoea and vomiting cause abnormal losses of fluid.
Treatment is designed to replace fluids quickly before dehydration develops.
Again the effects of dehydration are more serious in young children and babies. Signs of dehydration Passing less urine, or dry nappies. Sunken eyes and no tears. Drowsiness and irritability. Inelastic skin that stands when pinched.