A, avoid being strongly squeezed this point to pay special attention. The breast is squeezed by external forces, there are two major disadvantages: First, the internal soft tissue of the breast is vulnerable to contusions, or to internal hyperplasia, etc.. The second is that after being squeezed by external forces, it is easier to change the external shape, so that the towering breasts collapse and sag. Avoid squeezing the breasts with force should pay attention to two points: 1) sleeping position to be correct. Women’s sleeping position to supine is better, try not to long-term side lying in one direction, which is not only easy to squeeze the breast, but also easy to cause bilateral breast development imbalance. 2) When couples have intercourse, they should try to avoid the male partner to squeeze the breast. Otherwise, it will become an internal disease. Second, avoid wearing a bra is not appropriate do not wear an unsuitable bra, or simply do not wear a bra. Choose the right bra is necessary to protect the breasts, do not take it lightly. To choose the right type of bra, the following 3 points are recommended: 1) Wearing a bra should not be oppressive, i.e. the bra should not be too small, and a model that covers all the outer edges of the breasts should be chosen. (2) The straps of the bra should not be too loose or too tight, and the material should be an elastic band that can be loosened a little. (3) The distance between the protruding parts of the bra should be moderate, not too far or too close. In addition, the production material of the bra is best pure cotton, should not choose chemical fiber fabric. Third, do not use too cold or too hot water to rinse the breasts. The microvasculature around the breast is dense, overheated or too cold bath water stimulation is extremely unfavorable, if you choose to sit in the bath or tub, and not in too hot or too cold bath water for a long time. Otherwise, it will make the soft tissue of the breast relaxation, will also cause dry skin. Fourth, avoid nipples, areola area is not clean. The cleanliness of women’s breasts is very important, long periods of uncleanliness can cause trouble, such as inflammation or cause skin disease. Therefore, the breasts must be cleaned often. Fifth, avoid excessive dieting. Diet can control the increase or decrease of body fat, nutritious and contain sufficient amounts of animal fat and protein food, can make the body parts of the fat stored in abundance. Most of the internal tissue of the breast is fat. The content of fat in the breast increases so that the breast can be developed properly. Some young women, the pursuit of slim, reckless dieting, even every day to vegetarian dishes, the result makes the breast development is not sound, dry and invisible, then other conservation measures will not help. Sixth, avoid not exercise. Appropriate to do some breast exercises, light massage can make the breast full, do breast exercises is one of the measures to implement breast exercise, breast exercises for breast tissue has been basically sound women is very important. In fact, the exercise itself does not make the breast bigger, because there is no muscle in the breast. The purpose of the exercise is to make the breasts under the pectoral muscle growth, the increase in the pectoral muscle will make the breast protrude, it seems that the breast is large. Seven, young girls should not use hormonal drugs. If you choose to use estrogen drugs, although you can promote breast development, but at the same time there are some extremely unfavorable risk factors lurking. Moreover, if the estrogen level in a woman’s body remains too high, it may increase the possibility of cancer in the breast, vagina, cervix, uterine body and ovaries. Commonly used estrogens include estradiol benzoate, ethylene estradiol, etc.