1. Symptoms of diarrhea Diarrhea refers to loose stools with increased frequency, usually accompanied by abdominal bloating, abdominal pain and other uncomfortable feelings. For babies who are one and a half years old, if they have diarrhea, they may have a loss of appetite, lethargy, etc. At this time, parents need to observe the baby\’s condition in time and take corresponding measures. 2. Causes of diarrhea in babies 1. Underdeveloped digestion: The digestion of a one-and-a-half-year-old baby is not fully developed, so it is prone to problems such as indigestion and diarrhea. 2. Improper diet: If the baby consumes too much food or eats expired and spoiled food, it will also