Usually, some thin girls are common. They are full of doubts because of the prominent Adam's apple on their necks. They think that the long Adam's apple is a unique physiological phenomenon of men, and they are worried that the long Adam's apple will transform themselves into men and affect their later lives. To understand this problem, we must first understand how the Adam's apple is produced.

The human Adam's apple is composed of 1 1 cartilage as a scaffold, and the most important and largest one is called thyroid cartilage. When the fetus is two months old, the thyroid cartilage begins to develop and will continue to grow every year until 5-6 years after birth, but the growth of thyroid cartilage basically stops during the period from five to six years old to adolescence. Thyroid cartilage is the same size in men, women and children. After entering adolescence, male androgen secretion increases, and the upper end of the anterior horn of bilateral thyroid cartilage plates increases rapidly, protruding forward to form Adam's apple. At the same time, the laryngeal cavity is also significantly enlarged, almost six times that of newborns. This makes the boy's original crisp children's voice become a deep and deep adult voice. This sexual characteristic of men is caused by testosterone secreted by testicles. Although normal women's ovaries also produce a small amount of testosterone, it is only 5% of that of men, so the average woman will not have an Adam's apple, that is, the Adam's apple will not stand out obviously.

Then, why do some girls have prominent Adam's apple? According to research, there are roughly the following reasons:

One is genetic factors. The characteristics of parents' growth and development, such as height, weight, facial features, and of course the size of Adam's apple, will be passed on to the next generation. If the father's Adam's apple is particularly prominent, then the daughter's Adam's apple may be more prominent than the average person.

Second, endocrine disorders. Mainly due to insufficient endocrine function. The dominant sex hormone in women is estrogen, and the content of androgen is very small. However, if endocrine disorders are caused by pathological changes in the body, such as pituitary adenoma and ovarian hypofunction, the content of androgen in the body will appear masculine manifestations such as prominent Adam's apple, rough voice and hirsutism. At the same time, some characteristics that women should have are not obvious.

The third is emaciation. Too thin women, the fat and muscle tissue in the front of the neck are underdeveloped, so the Adam's apple will appear to protrude forward.

The prominent Adam's apple of girls is mostly a manifestation in the development process. If there are no other abnormal signs, it should be normal and will not have any adverse effects on gender and development. However, for the sake of prudence, the girl's Adam's apple is prominent and obvious, so it is best to go to the hospital for examination. If it is caused by endocrine disorders, it needs targeted treatment and can be cured. Also check whether there is a tumor in the reproductive system and whether there is a disease in the adrenal cortex. In addition, a very small number of girls have male testicles, which is medically called hermaphroditism. Such patients will affect sex and fertility. If the prominent Adam's apple is related to neck muscle wasting, as long as you pay more attention to nutrition and exercise, don't blindly diet to lose weight. After the muscles are full, you won't feel the Adam's apple protruding.