Female mammary gland development time is about 12-16 years old, some women can extend to 18 years old, after 18 years old puberty development end, mammary gland will stop developing, this time the mammary gland development stops, any drugs or massage therapy, etc., can’t promote the mammary gland development again. Therefore, during puberty, you need to pay attention to a reasonable combination of nutritional diet, eat more high-protein foods, as well as fresh vegetables and fruits, develop a good routine, avoid staying up late, and exercise more to help the development of the body. After the end of puberty, it is not recommended to indiscriminately use drugs or massage therapy and other methods of breast augmentation, at present the only effective method of breast augmentation is surgical treatment. Usually you can also pay attention to the upper limbs and chest muscle strength exercise, can play a role in shaping the chest, the female mammary gland stops developing around the age of 16-18 years old.