2, genetic reasons, some women will be born with a larger Adam's apple, which is related to heredity.
3, the cause of the disease, some special endocrine diseases or oral drugs containing androgen, leading to an increase in the level of androgen in women, may lead to masculine performance in women, such as prominent Adam's apple, deep voice, long beard, hairy and so on.
Extended data
Women's "Adam's apple" is not a real "Adam's apple", but other nodules in the neck, the most common being goiter. The thyroid gland is H-shaped and divided into two lateral lobes and isthmus connecting the lateral lobes. The two lateral lobes are located in the lower part of the larynx and the anterolateral part of the tracheal neck.
The upper end reaches the middle of thyroid cartilage, so it is the nearest neighbor of thyroid cartilage. During adolescence, some girls' thyroid gland will be slightly enlarged, and it seems that the anterior cervical region is full, which is often mistaken for Adam's apple.
Adam's apple composition structure: the human throat is composed of 1 1 cartilage as a scaffold, and the most important and largest one is called thyroid cartilage. When the fetus is 2 months old, thyroid cartilage begins to develop and continues to grow every year until 5-6 years old after birth, but the growth of thyroid cartilage basically stops from 5-6 years old to adolescence.
So the thyroid cartilage of boys and girls is the same. After entering adolescence, due to the increase of androgen secretion, this makes men have Adam's apple.
Baidu encyclopedia-Adam's apple
People's Daily Online-Women's Adam's apple has nothing to do with masculinity, but mostly goiter.