Pediatric pneumonia is a prevalent disease in infancy and early childhood and is most commonly caused by viruses, bacteria, or pathogens such as mycoplasma. Because pneumonia is a major health and life threatening disease in children, it is important to be vigilant. Fever and cough are common but not essential symptoms of pneumonia, and some infants can develop the disease without fever or cough. For pneumonia in general, you can determine if your baby has pneumonia by looking at the following: 1. Fever: Most pediatric pneumonia is febrile, mostly above 38°C, and lasts more than 2-3 days without subsiding. 2. Cough, wheezing and dyspnea: Cough and wheezing caused by colds and bronchitis are mostly paroxysmal and usually do not result in dyspnea. If the cough and wheezing are heavier, breathing is faster, both sides of the nose flap, the lips of the mouth are blue or purple, or there is a chest depression performance, the child should be considered to have pneumonia, and the condition is more serious. 3. Mental status: If the child is not in good spirits, has purple lips, is irritable, cries or is lethargic, or has a seizure while having a fever or cough, it means that the child is more seriously ill and has a higher likelihood of having pneumonia. 4. Decreased appetite: When a child has pneumonia, his or her appetite decreases significantly, and he or she may refuse to eat or cry as soon as he or she eats. 5. Shortness of breath and increased breathing: When a child is quiet, look at the rise and fall of the abdomen to count the number of breaths. A child 2 to 12 months old with more than 50 breaths per minute, and a child 1 to 5 years old with more than 40 breaths per minute, suggests that he or she may have pneumonia. If your child has most of these characteristics, you can initially determine that your child has pneumonia and should go to the hospital immediately.