Women all hope to have a proud bust, but various reasons can affect the development of the breasts, such as hormone deficiency, or the influence of genetic factors and diseases, which can lead to small breasts. 1. Hormone deficiency Breast growth and development are affected by hormones secreted by the anterior pituitary gland, adrenal cortex, and ovaries. The anterior pituitary gland produces breast-stimulating hormone, which directly affects breast development, and the ovaries produce estrogen and progesterone, which promote breast development. If hormone secretion is insufficient, the breasts can easily become smaller. In some cases, the primitive breast tissue is poorly developed during the embryonic period, which affects breast hyperplasia. Although the breasts are flat, the ovarian function is normal, and the pubic hair and vulva are well developed. 2. Influence of genetic factors Breast size is also related to race, genetics and physique. If the mother has larger breasts, the daughter is more likely to have larger breasts. Western women generally have much larger breasts than Eastern women. People with thin bodies tend to have flatter chests on one side, while obese people have more fat, so their chests tend to be more prominent. 3. Disease factors Physical illness may also have an impact. There are some diseases that can affect women's breast development, such as hypopituitarism, pituitary dwarfism, primary ovarian dysgenesis and other diseases. If a young girl suffers from these diseases, her breast development will be affected, and her breasts will naturally not grow big. |
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