Previously, we mainly focused on educating people about development from a girl’s perspective. Today, we’ll talk about common misconceptions about judging breast development from a mother’s point of view.
Firstly, many mothers know that their daughters need to wear developmental bras when they start puberty, but there is no single answer, or even any answer, to exactly when puberty begins.
However, this is a very important issue because breast development marks the beginning of puberty . This is accompanied by sensitive, vulnerable, and volatile emotions.
Whether you’re a mother or a daughter, it’s important to understand physical development in advance. Let’s take a look.
1. Common misconceptions about judging breast development
Myth 1:
Children under 11 years old are not considered to have developed.
Eliminate misconceptions:
Many mothers believe that breast development only truly begins when their children enter middle school, and that’s when they’ll buy them tank tops. ×
However, children today have sufficient nutritional intake, and their development is showing a clear trend of starting earlier; development between 8 and 11 years old is considered normal. √
2. Common Misconceptions in Judging Breast Development
Myth 2:
When the breasts have developed shape, that’s when true development has begun.
Eliminate misconceptions:
Some mothers believe that breast development is complete once the breasts have developed shape, and that if they are still flat, there’s no need to wear a bra. ×
But the truth is, breasts have already developed for a period of time by the time they take shape , and not wearing a tank top can easily lead to hunching and poor posture, affecting development and body shape.
3. Common Misconceptions in Judging Breast Development
Myth 3:
He just gained weight; this doesn’t count as development.
Eliminate misconceptions:
Some mothers mistakenly believe that their daughters’ breasts are developing because they have gained weight. ×
However, whether or not breast development has occurred needs to be determined based on the characteristics of breast development and the child’s age. It cannot be judged hastily by simply looking at body shape or relying on experience.
4. Signs that breast development has begun
Look: Will my daughter’s nipples show when she wears thin clothes?
One sign of development is nipple protrusion; when the nipples become visible under clothing, it’s time to buy developmental bras for your child.
Listen: Did your child say their chest hurts when touched?
Some children experience itching and swelling during puberty. If a child aged 8-11 complains of chest pain, it generally indicates that breast development has begun.
Touch: Can you feel any lumps in the breast?
Some children don’t experience noticeable nipples or tenderness during puberty.
Mothers can also check their breasts by touching them; if lumps are present, puberty has begun, and it’s normal for only one side to have them.
5. What can a mother do as her daughter goes through puberty?
① Not yet developed
Introduce developmental underwear to children around 7-8 years old, prepare it in advance, and teach them the correct way to wear it.
② Already developed
Measure your upper and lower bust measurements to buy a well-fitting bra, and simultaneously learn about developmental science.
③ Regular observation
Observe your child’s developmental changes closely, cultivate gender awareness, and change their underwear regularly.

