How Many Days Does a Newborn Need to Reach One Month Old?

According to the lunar calendar, the full-month celebration for a baby is usually held on the same date as the day of their birth in the following month. For example, if a baby is born on the second day of the second lunar month, the full-month celebration will be held on the second day of the third lunar month. However, more commonly, the full-month celebration is calculated based on a full 30 days, regardless of the lunar calendar date.

Male infants: Height 48.7-61.2cm; Weight 3.09-6.33kg; Head circumference 33.3-40.7cm.

Female infants: Height 47.9-59.9cm; Weight 2.98-6.05kg; Head circumference 32.6-39.9cm.

Note: The above data is compiled based on the Ministry of Health's "Reference Standards for Growth and Development of Children Under 7 Years Old in China".

Babies' ability development mainly refers to comprehensive development in areas such as gross motor skills, fine motor skills, vision, hearing, touch, smell, taste, language, emotions, and social skills. However, the focus of each baby's development may vary slightly at different ages, which is related to their individual developmental characteristics.

Basic ability performance of a 1-month-old baby includes:

Abilities that should be mastered (most babies can achieve): Able to lift the head when lying on the stomach; Able to respond to sounds; Able to stare at a person's face.

Developing abilities (half of the babies can achieve): Able to briefly follow objects with their eyes; Able to make "cooing" or "aah" sounds; Able to see black and white patterns.

Advanced abilities (few babies can achieve): Able to smile and laugh out loud; Able to lift the head to a 45° angle.