在封建社会,缠足和束胸是很普遍的。科学发达的今天,再也没有人缠足了,可是束胸的人还大有人在,在大城市里有,在偏远山区和农村就更多了。有些年轻姑娘,把自己乳腺的正常发育,乳腺增大、隆起认为是令人难堪的、不好意思的事情,想方设法在人们面前掩饰这种生理现象。她们使用过紧的乳罩,把乳房紧紧地裹起来,造成乳腺血液循环不良,影响乳腺和乳头的发育。有些乳罩在设计上极不合理,名曰“乳罩”,实则是变相束胸,束胸不仅影响胸廓的发育,主要的还是对乳腺的健康极 In feudal society, footbinding and busts are commonplace. Today, no one has reached the foot of foot in a well-developed science, but there are still many people who have their own breast-cords. In large cities, there are more in remote mountainous areas and in rural areas. Some young girls, the normal development of their own breasts, breast enlargement, uplift that is embarrassing, I am sorry to find ways to find ways to hide this physiological phenomenon in front of people. They use tight bra, tightly wrapped the breast, causing poor blood circulation in the breast, affecting the development of the breast and nipple. Some brassiere in the design is very unreasonable, the name is “bra”, but in reality is disguised breasts, breasts not only affect the development of the thorax, the main or the health of the pole of the breast