What’s wrong with my 6-month-old baby’s diarrhea? Almost every baby has diarrhea more than once, especially at a younger age, and diarrhea is also the most common disease that babies suffer from. Baby diarrhea is a phenomenon that can affect the growth and development of the baby in mild cases, or endanger the life of the baby in severe cases, so new mothers should treat their babies diarrhea correctly. The causes of diarrhea in babies can be viral infections, bacterial infections, parasites, or allergies to milk, milk powder and antibiotics. One of them, like gastroenteritis, is an inflammation of the gastrointestinal tract that can cause diarrhea in babies. There are many causes of gastroenteritis, the most common being rotavirus, and children who have diarrhea when they have it are because they are infected with this virus. Many are occurring in the fall and can be accompanied by vomiting and fever, in which case they need to go to the hospital for prompt treatment. The second cause of diarrhea in babies may be a bacterial infection, which causes severe diarrhea in babies and can sometimes be accompanied by abdominal pain. If the baby has abdominal pain, fever and bloody stools, it means that the baby’s symptoms are more serious. It is necessary to go to the hospital for a detailed examination to clarify the cause of the baby’s diarrhea and then for symptomatic treatment.