How much weight is normal for a newborn to gain in the first month

It is normal for a full-term newborn to gain 1 to 1.7 kilograms a month.
After the fetus is delivered from the uterus, it gradually adapts to the external environment and will gain weight rapidly. Within 28 days after delivery, the newborn baby is in the neonatal period, the newborn baby will take in a lot of nutrients through breast milk, and the weight will increase rapidly, under normal circumstances, the weight gain of 1~1.7 kg in a month is normal.
If less than 1 kg, the weight gain is low, may be insufficient milk intake or congenital digestive malformations and other reasons, you need to go to the hospital in a timely manner to clarify the diagnosis, follow the doctor’s instructions for targeted treatment, so as not to affect the child’s growth and development.