Current studies have concluded that breast enlargement does not significantly increase the risk of breast cancer, either in clinical or pathological manifestations. However, breast cancer and breast hyperplasia can co-exist, so you should not think that having breast hyperplasia excludes the risk of breast cancer. Mastocytosis is the most common breast lesion. The World Health Organization calls mastocytosis a benign breast structural defect, not a real disease, but a physiological lesion. Mastocytosis is associated with female endocrine dysfunction, especially with estrogen, and any medication can only relieve symptoms but not cure mastocytosis. Since hormone levels may fluctuate due to endocrine changes, the degree of mastocytosis may also change. As a result, there may be different physical examination results at different times. The current treatment for breast enlargement is mainly symptomatic, mostly using endocrine regulation. After menopause, the body’s estrogen level will drop, at which point mastocytosis will be untreated. Women with mastocytosis should develop good habits, work and rest regularly, do more exercise to enhance their physical fitness, and pay attention to balanced nutrition to help regulate endocrine secretion and improve mastocytosis.