First, babies will express their needs by crying. If newborns know how to express their needs by crying, it proves that they are healthy. Usually, when babies are hungry, they will wake up and cry to tell their mothers that they are hungry. Their crying can also help new mothers secrete more milk in their breasts, and they will also tell their caregivers by crying after urinating, because they will feel uncomfortable themselves. When we help them change into clean diapers or diapers, they will calm down immediately, and then.
Second, judge whether the baby is healthy from the baby's stool. Many experienced parents know that if you want to see if your baby is healthy, just look at their stools. If the baby's stool is yellow, not soft or hard, and defecates regularly every day, then the baby must be healthy. And if the baby eats indigestible things, then their poop will have indigestible residues, and if the baby's stomach is not good, then the poop may be rotten and emit a sour taste, so we can judge the baby's state from the baby's poop.
Third, the baby's body temperature can directly reflect their health. With a baby, we can always keep a thermometer at home. The baby can't talk, so if there is a cold and fever, we can't immediately judge whether they are sick or not. If we touch the baby with our hands and feel that the body surface temperature is too high, we need to take a thermometer to measure the child's temperature. The general body temperature is above 37.2℃, which proves that the baby has a cold and a fever. Need to use physics or drugs to cool down, the baby's fever is persistent, which means that it may cool down after taking medicine for a while, but it will rise again after a while, which requires our continuous attention and observation.