The older you get, the bigger your breasts get. Consider that it may be related to abnormal hormone levels and breast-occupying diseases. 1. Abnormal hormone levels: Under the influence of genetic, environmental and mental factors, the level of estrogen in the body is constantly increasing, which will stimulate the breast tissue and lead to excessive proliferation of breast tissue, resulting in bigger breasts with age. 2. Breast occupying disease: Suffering from breast occupying disease, such as breast fibroma, breast cancer and so on. The proliferation of diseased tissues may lead to the enlargement of breasts and affect the normal shape of breasts. The older you get, the bigger your breasts get and other reasons may be involved. It is recommended to go to the breast surgery department of the hospital as soon as possible to complete ultrasound, molybdenum target and other related examinations to clarify the cause of the disease.