What is the normal weight for a four-and-a-half-month-old baby?

Patient's question:

No

Doctor's answer:

Infant Weight Estimation Formula (1-6 Months): Birth Weight x Age in Months x 0.7.
According to the formula, if calculated at 5 months, the baby's weight is approximately 9 jin 6 liang, indicating the baby is slightly overweight.
Infants grow rapidly within the first 6 months, so there is no need to worry excessively.
You can record the baby's weight each month to observe their weight changes.
If you remain concerned, you can have the baby checked at the hospital.