The two breasts are different in size. What is the reason?

It is normal. Most women are like this. In fact, women's breasts are often slightly different, generally the right side is larger than the left side, but there are also a few young women who show obvious differences, which hinder their beauty. At this time, it can be corrected by strengthening the exercise of the left chest muscle. Usually, consciously lifting heavy objects with your left hand can not only strengthen your left chest muscles and breast enhancement, but also promote the development of your right hemisphere with your left arm, making you smarter. In addition, you can also gently press the left breast with your right hand, massage clockwise, three times a day, 30 times each time, or breast enhancement. During adolescence, the breasts of girls on both sides can be larger due to physiological reasons, usually because the breast buds on the side with strong sensitivity to estrogen and progesterone in the body develop first and grow faster, making them appear larger; The breast bud on the side with poor sensitivity is relatively small because of its slow development and slow growth. With the development and maturity, the breasts on both sides will gradually be symmetrical. This temporary phenomenon of different sizes of breasts on both sides is not uncommon, so there is no need to worry, let alone surgical intervention, and it is advisable to wait patiently. When the body is mature and the figure is fixed, if the breasts on both sides are abnormal, the above self-correction method is invalid, and surgical correction can be considered. Why is breast development asymmetrical? With the increase of age, girls are influenced by endocrine. In addition to the gradual development of reproductive organs, the breast will also begin to develop under the action of sex hormones. Fat will gradually be evenly distributed in the chest and buttocks, showing a girl's figure. This phenomenon is called "secondary sexual characteristics" in medicine. Usually, after girls enter puberty, one or both mammary glands may develop earlier at the same time, which is normal and need not be nervous. Just like your mother said, it will gradually flatten out. However, mom didn't explain clearly to you why there was asymmetry. Why symmetry can be developed slowly. From a medical point of view, the causes of asymmetric breast development can be divided into physiological and pathological aspects. Let's start with "physiology". The breasts of adolescent girls are one big and one small, which is usually caused by the different sensitivity of a substance called "milk bud" in the breast to estrogen and progesterone in the body. The breast buds on the sensitive side develop first, and the faster they grow, the fuller they will appear. The milk buds on the less sensitive side will look smaller because of their slow development and slow growth. Another reason is that asymmetric activities of limbs will affect local blood circulation. For example, long-term exercise of one upper limb or chest muscle will lead to faster development of one breast. In addition, habitual sleeping posture and long-term unilateral sleep can also lead to asymmetric breast development. It is also easy to overlook that when a girl's breasts are maturing, if a bra is not used to support her breasts, the burden on her breasts will be uneven. Because there is no muscle tissue in the breast, only gland tissue and fat, and connective tissue supports them. This connective tissue is like a taut fibrous web, which plays a supporting role. However, unlike muscle tissue, it has no elasticity. Therefore, girls do not wear bras in time during breast development, and uneven breast development may also occur. Let's talk about the "pathological" reasons for uneven breast development. When one breast is undeveloped, one breast is acquired, one breast is injured or inflamed, or one breast has tumor or other lesions, there will also be asymmetry in bilateral breast development. Generally speaking, it is normal for adolescent girls to have uneven chest sizes. As long as there is no lump and pain, don't worry too much. However, if you have passed puberty and your breasts are still unevenly developed, you'd better go to a regular hospital for examination and diagnosis. Does breast asymmetry affect health? Adolescence is an important stage in women's life, and the development and shaping of breasts are basically completed at this stage. If it belongs to adolescent physiological bilateral breast asymmetry, then with the gradual development and maturity of the body, the "running-in period" will be gradually completed between the breast and gonad, and a stable connection will be established, and the breasts on both sides will gradually be symmetrical. Therefore, it will not affect the health of adolescent girls, and there is no need to feel inferior and distressed for this phenomenon, let alone surgical intervention. A teenage girl just needs to wait patiently for her to fully mature. It should also be emphasized here that you should never use drugs at will! Some girls are worried about uneven breast development, afraid or ashamed to ask their parents and doctors, so they are "in a hurry to see a doctor"! There are many such real cases-because of listening to the so-called "folk prescription" to give medicine to the breast locally, or using antibiotics, Rupixiao and other drugs on their own, the breast is ulcerated, atrophied and inflamed, which not only can't cure the uneven development of the breast, but also makes them suffer a lot, causing considerable damage to their health. Don't worry about adolescent breast care. With the maturity of adolescence, the phenomenon of asymmetric breast development will disappear. At the same time, it is also very important to do a good job in breast health care: (1) Pay attention to correct posture at ordinary times. Stand and walk with your head up, chest up and abdomen in. Lying on your side or sleeping on your back, don't lie on your stomach, so as not to squeeze your breasts and affect your breast development. (2) Don't corset your chest. Chest girdling directly affects breast development. When you are close to maturity, you should wear a bra with moderate elasticity. (3) Avoid trauma and keep it clean. (4) increase nutrition. Girls should not blindly go on a diet, but must have certain adipose tissue to keep their breasts full. (5) strengthen exercise. Appropriate participation in physical exercise, especially swimming, the massage effect of water on breasts is conducive to the uniform development of breasts.