Summarize
1, The most common benign breast disease in clinic
2, It mostly occurs in women between the ages of 30 and 50
3, Breast pain, nodules or lumps, some with nipple discharge
4, Different pathologic types have different risk of breast cancer
Mammary hyperplasia is a benign mammary gland disease caused by the abnormal process of normal development and degeneration of the mammary gland. In essence, it is a disorder of the normal structure of the mammary gland caused by the hyperplasia and insufficiency of the mammary gland. Due to the complex and diverse morphology of histopathology, clinical nomenclature is not uniform.
Foreign literature called mammary gland disease, fibrous breast disease, fibrous breast change, etc., ICD-10 called breast cyst, breast hyperplasia, etc., surgery textbooks called breast cystic hyperplasia, breast disease, 2016 expert consensus uniformly called the above names "mammary hyperplasia".
Breast hyperplasia is not a tumor, nor does it have inflammatory changes, and is a benign breast disease.
Epidemiology
This disease tends to occur in women between 30 and 50 years of age and is the most common benign breast disease. 70-80% of women have varying degrees of breast hyperplasia.
Underlying cause
- The imbalance of estrogen and progesterone leads to hyperplasia and incomplete recovery of mammary gland parenchyma
- The quality and quantity of breast sex hormone receptors are abnormal, resulting in different degrees of hyperplasia in each part of the breast
- The increase of prolactin affects the growth, development and lactation function of mammary gland, and also affects the function of hypothalamic-pituitary-gonadal axis
Inducing factor
Any factor that causes changes in sex hormones or their receptors can increase the risk of developing the disease
- age
- Menstrual history
- Gestation history
- Lactation history
- Contraceptive history
- Diet structure
- Social psychological factor
