1. Weight and length: The average weight of newborns is 2.5-4 kg, and the length is 48-53 cm. If the baby's weight and length are within this range, it can usually be considered healthy.
2. Skin color: Healthy newborns usually have pink skin and no obvious jaundice. If you find that your baby's skin turns yellow or has other abnormal colors, you should consult a doctor in time.
3. Breathing and heart rate: The breathing frequency of normal newborns is between 30 and 60 beats per minute, and the heart rate is between 120- 160 beats per minute. If you feel that your baby's breathing or heart rate is abnormal, you should see a doctor immediately.
4. Activity and reaction: Healthy newborns should have good activity and reaction ability. They should be able to look at your face, respond to sounds and try to stretch and rotate your body.
5. defecation and urination: healthy newborns generally defecate several times a day, and diapers should be kept moist. If you find that your baby's stool or diapers are abnormal, you should consult a doctor.
6. Feeding situation: Healthy newborns should have good sucking ability and swallowing ability, and can eat normally. If you find it difficult for your baby to breastfeed or have other feeding problems, you should consult a doctor. The above are just some commonly used indicators and methods, which do not fully represent the baby's health. If you have any concerns or questions, it is best to consult a professional doctor for a detailed examination and evaluation.