Summer infants peeing especially little may be normal, may also be caused by pathological factors, according to the child’s specific situation to analyze. 1. Normal phenomenon, summer due to the high temperature, the baby body surface area is larger and other factors, the baby’s urine volume will be reduced, there may be yellow urine and other situations, are normal. The baby’s spirit, appetite are normal, timely hydration, urine volume back to normal. 2. Pathological factors: dehydration, the baby will appear urinary symptoms, can be accompanied by nausea, vomiting and other symptoms, need to go to the hospital in a timely manner, to give hydration as well as to correct electrolyte disorders and other symptomatic treatment; renal disease, acute glomerulonephritis and other diseases, the baby can appear urinary symptoms, hematuria, and other symptoms, need to be timely, complete urine routine and other related examinations, to give the symptomatic treatment. Summer babies urinate especially little, need to closely observe the baby’s general state and development, if necessary, consult a doctor.