Earliest signs of development in girls

As girls grow older, their physical development characteristics are different at different stages. However, in general, females begin to develop during puberty. This is when sexual characteristics begin to appear, especially breast development, which is most obvious. However, since everyone's physical condition is different, the development situations are also different. There are many characteristics of girl's development, and we must be aware of them in a timely manner.

Earliest signs of development in girls

Normal girls usually enter puberty at the age of 9 to 11. The earliest sign of puberty is the enlargement of the ovaries (which is difficult to detect in time without B-ultrasound, so it is often marked by breast development). After that, the more estrogen the body produces, the more obvious the female characteristics become.

The average duration of a girl's entire puberty is about 4.7 years, and her height increases by about 20 to 25 cm. The mid-puberty period is about a year, which is also a period of rapid growth with an annual growth rate of nearly 10 cm. After menarche, the growth rate drops sharply, and the continued growth is about 4 to 8 cm in total. If a girl has her menarche for more than two years without medical intervention, she generally will not be able to grow taller. Some girls do not have an obvious period of rapid growth. As long as their bone age increases normally, parents do not need to worry too much.

Developmental characteristics of girls at different stages

8-10 years old

The bones in the pelvis begin to develop and begin to outline the female body shape; fat is evenly distributed, highlighting a more feminine figure; nipples grow (one at a time).

10-11 years old

The nipples become larger; one or two pubic hairs grow on the labia majora.

11-13 years old

Breasts develop beneath the nipples; the openings of the internal and external reproductive organs enlarge; the vaginal walls thicken and secretions may be produced.

12-14 years old

Breasts are fully developed. The nipples become more pigmented and darker in color.

13-15 years old

Pubic hair becomes thicker, body hair appears under the armpits, and some girls develop acne on their faces. Menarche.

The most prominent feature of puberty is sexual development, so it is also called the period of sexual maturity. Girls generally enter puberty 1-2 years earlier than boys. In addition, it is also affected by many factors such as region, nutrition, and mental factors, among which nutritional status plays a major role. Adolescence is the second peak of human growth and development, and huge physiological changes occur, so you must be fully prepared mentally.

Introduction to the development process of girls

Starting at age 7 or 8, girls' body systems begin to develop. About 2 years later, breasts begin to develop under the combined action of ovarian hormones, pituitary hormones and insulin. Hello: The age of breast development also varies from person to person, with an average of 10.8 to 11.4 years old. If breasts have not developed after the age of 16, you should be alert to whether it is delayed sexual development or ovarian hypoplasia.

Girls' breast development usually begins when their nipples start to grow, around the age of 9 to 10 years old. Initially, it is breast hyperplasia, forming a breast nucleus, which feels like a nodule or a small lump and is painful when pressed; at the age of 12 to 13, the mammary ducts and subcutaneous fat increase day by day, the breasts gradually bulge and become elastic, and the color of the areola and nipple becomes darker. The mature breast is hemispherical in shape and is located between the 3rd to 6th ribs.

When girls reach the age of 16 to 18, their chest and breasts are almost mature. Use a soft tape measure to measure from the upper bottom of the breast through the nipple to the lower bottom of the breast. If the distance between the upper and lower parts is greater than 16cm, they should wear a bra.