A baby girl’s height of 53.5cm at full term is generally normal. The average length of a full-term baby girl is 50cm within 6 months, and the current height of a baby girl who has just turned one month old is 53.5cm, which is within the normal range. Generally, the growth rate is faster in the first year after birth, and the length can reach about 75cm by the age of one year or so. Female babies just turned one month old should also calculate their weight, mainly by using the formula of newborn weight + age in months x 0.7, and after more than 6 months, it can be calculated according to the formula of 6kg + age in months x 0.25. It is recommended to regularly observe the baby’s body changes, if the height is within the normal range, but the weight does not meet the standard, you need to go to the hospital regularly for pediatric examination, and according to the diagnosis results of targeted treatment.