Is it normal for a 10-year-old girl to have started developing larger breasts?

Generally, it is a normal developmental phenomenon for girls to experience breast enlargement at the age of 10. The detailed explanation is as follows:

Female breast development usually begins between the ages of 9 and 11, marking the beginning of puberty in girls. During this stage, hormone secretion in the body increases, leading to the development of secondary sexual characteristics. Therefore, breast development in a 10-year-old girl does not indicate precocious puberty, but rather a normal physiological developmental process. Precocious puberty typically refers to the appearance of signs of sexual development in girls before the age of 8.

In the early stages of breast development, girls may feel breast tenderness on both sides and experience pain upon palpation. The breasts will then gradually enlarge, and the areola will also increase in size. As development continues, the voice becomes higher-pitched, the skin becomes smoother and more delicate, subcutaneous fat increases, and weight and height gradually increase. Additionally, characteristics such as underarm hair and pubic hair will gradually appear, and menstruation may eventually occur.

During the development of secondary sexual characteristics in girls, parents should pay attention to their psychological well-being, helping them avoid feelings of inferiority or anxiety caused by physical changes. A balanced and comprehensive diet should be ensured, avoiding picky eating habits. Encourage consumption of foods rich in high-quality protein, such as eggs, milk, and lean meat, as well as fresh vegetables and fruits like oranges and apples. Girls should also be encouraged to engage in appropriate outdoor physical activities, which are beneficial to both physical and mental health.