How long does it take for a girl to get her period after she starts to develop?

A girl's body is very mysterious because her development is more complicated than that of a boy. For example, when a girl reaches a certain age, her breasts begin to develop gradually, and the onset of menstruation is also a sign of a girl's growth. The timing of a girl's menstruation is affected by many factors, such as the timing of her mother's menstruation, which is affected by genetic factors. Of course, the girl’s own development is what affects her menstruation. How long does it take for a girl to get her period after she starts to develop?

(1) Women's menstruation is regulated by the hypothalamus-pituitary-ovarian gonadal axis. Mental factors, mood swings, environmental changes, pregnancy, age, disease, drugs, and nutritional status can all cause dysfunction of this gonadal axis, resulting in irregular menstruation. The menstrual period generally lasts about 3 to 7 days. It is normal for menstruation to be advanced or delayed by about a week. If the menstruation is delayed for more than 10 days, you need to go to the hospital's gynecology department for appropriate examinations to confirm the diagnosis.

(2) "Menhai" is a nickname. The official name is "menstruation", and girls will experience their first menstruation around the age of 12. Menarche can also be described as "a flower blooming at the beginning of the season". It is a very important part of the growth process. Most girls begin to menstruate between the ages of 9 and 13. The first menstrual period is called menarche, which means that the reproductive system is maturing. The early or late menarche is closely related to each person's genetics, living environment, nutrition and other factors. Use sterilized toilet paper and sanitary napkins that meet hygiene standards, pay attention to cleanliness and hygiene, take a shower, wash the vulva with warm water, change underwear frequently; eat less spicy food.

(3) Puberty refers to the period from the onset of menstruation to the gradual development and maturation of reproductive organs. Generally from 10 to 18 years old. The physiological characteristics of this period are rapid development of the body and reproductive organs, formation of secondary sexual characteristics, and the onset of menstruation. Whole body development: With the onset of puberty, the whole body grows rapidly and gradually transitions to maturity. Development of reproductive organs: With the development of the ovaries and the gradual increase in the secretion of sex hormones, there are also obvious changes in various parts of the genitals, which are called primary sexual characteristics. The external genitalia changes from juvenile to adult type, the mons pubis bulges, the labia majora become thickened, the labia minora become larger and pigmented, the length and width of the vagina increase, the vaginal mucosa becomes thicker, and wrinkles appear; the uterus enlarges, especially the body of the uterus, which accounts for 2/3 of the total length of the uterus; the fallopian tubes become thicker and the curvature decreases; the ovaries enlarge, and the cortex contains follicles at different stages of development, making the surface slightly uneven. Secondary sexual characteristics: refers to the characteristics unique to females other than reproductive organs. At this time, the girl's voice becomes higher, her breasts become fuller and more raised, armpit hair and pubic hair appear, the transverse diameter of the pelvis develops greater than the anterior-posterior diameter, and there is more subcutaneous fat on the chest and shoulders, showing a unique female body shape. Menstruation: Menarche is an important sign of the beginning of puberty. Since the ovarian function is not yet fully developed, the menstrual cycle after menarche is not regular and must be gradually adjusted to be close to normal. During adolescence, there are great physiological changes and thoughts and emotions are often unstable. Families and schools should pay attention to their physical and mental health.