My daughter's breasts started to develop at the age of nine.

Breasts are very important organs for women. Not only do they represent maturity, but they also require breastfeeding after giving birth. The development of female breasts begins in childhood, and girls mature earlier than boys. However, if a girl's breasts develop too early, it is not a good thing, as it will affect the child's height. So is it normal for a girl's breasts to begin developing at the age of nine? Let's take a detailed look below.

If a girl starts to develop before the age of 8, it is considered precocious puberty. Relatively speaking, boys enter puberty one year later than girls - that is, if secondary sexual characteristics develop before the age of 9, it is considered precocious; if they develop before the age of 10, it is considered early puberty; and if they start to develop after the age of 11, it is normal. Secondary sexual characteristics refer to the beginning of breast development, growth of pubic and axillary hair, and menarche in girls; and enlargement of the testicles and penis, growth of pubic and axillary hair, etc. in boys.

Whether it is precocious puberty or early puberty, the most direct impact on children is their height. A child's final height is determined by his or her bone age, not his or her age.

Precocious puberty can limit children's height development. During puberty, children reach the peak of growth and development, and their height increases faster than usual. But after puberty, the rate of height growth slows down. If precocious puberty occurs, although the child will be taller than children of the same age in the early stage, he or she will be shorter in adulthood. The reason is that the normal development period before puberty is shortened. After puberty, the bones gradually close. Once they are completely closed, people can no longer grow taller. Therefore, children with precocious puberty are generally shorter when they grow up.

How to prevent precocious puberty

Less tonic

Various health products and tonics, such as honey, pollen, and some children's oral liquid preparations, contain more sex hormones and even gonadal hormone-like substances. If taken for a long time, they can lead to precocious puberty.

Bad living habits

For example, do not let children have too much contact with computers, televisions, mobile phones, etc. Some images on TV that are not suitable for children to watch will subtly affect children. In addition, the radiation and bright light from electronic products can also stimulate the neurohypophysis, thereby accelerating precocious puberty.

Exercise more

Many cases of precocious puberty are caused by overnutrition and obesity. Adipose tissue is one of the endocrine organs and secretes estrogen, so physical exercise is also very important. Burning fat through exercise can lower your child's hormone levels.