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Girls with normal development, from 13 to 18 years old have menstruation, until the reproductive organs mature, this physiological period is called puberty. During this period, in addition to menstruation, the breast bright, as a secondary sexual sign, has obviously developed. There are acini and ducts inside the breast, acinar cells have the function of lactation, and glandular ducts are the pathway of milk. These two structures are developed under the stimulation of female hormones (also known as hormones) secreted by women's ovaries.
Adolescent girls seldom lactation.
It does not secrete milk during breast development. The reason should start from the source of prolactin, prolactin is produced from an endocrine gland in the human brain, called the pituitary gland (about one gram in size, shaped like broad bean). But it is also controlled by the inhibitor of prolactin secreted by the hypothalamus, which limits the secretion of prolactin in the pituitary gland, so lactation is a special function of maternal parenting. Women in general, especially adolescent girls, do not have lactation function.
There is no lactation during breast development.
The reason should start from the source of prolactin, prolactin is produced from an endocrine gland in the human brain, called the pituitary gland (about one gram in size, shaped like broad bean). But it is also controlled by the inhibitor of prolactin secreted by the hypothalamus, which limits the secretion of prolactin in the pituitary gland, so lactation is a special function of maternal parenting. Women in general, especially adolescent girls, do not have lactation function.
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The lactation of adolescent girls is an abnormal phenomenon.
There are two reasons:
First, a prolactin gland tumor occurs in the pituitary gland.
Second, although there is no prolactin tumor, but because the pituitary cells are stimulated by the prolactin promoting factor secreted by the hypothalamus, prolactin is secreted too much, which is called hyperprolactinemia
xxl dildo , and people suffering from this disease are often accompanied by symptoms of amenorrhea. The diagnosis was further confirmed by CT or nuclear magnetic resonance imaging and determination of prolactin in serum. If there is a tumor that can be treated with gamma knife, it can be cured without a craniotomy: if it is not a tumor, it is only hyperprolactinemia, you can take bromocriptine, but you must take it under the guidance of a doctor.
Learn to self-examine your breasts
Before the ovary secretes progesterone, the development of glandular lobule is extremely limited. After sexual maturity, especially during pregnancy, under the combined repeated action of progesterone and estrogen
dildo shop , the glandular lobule can be fully developed. The development of glandular lobules needs to be stimulated by a certain intensity of hormone and the action of estrogen and progesterone in an appropriate proportion, otherwise, the epithelial cells of the terminal mammary duct are prone to abnormalities, such as cystic hyperplasia.
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