What are the causes of breast cancer

summary

I believe you have some understanding of the harm of breast cancer. If the disease is serious, it will affect the lives of patients. Therefore, female friends need to know the relevant causes before choosing the appropriate methods. The following four reasons are analyzed from the case. If you find your own cause, it's like finding the "key" to defeat the disease. Early treatment and recovery will wave to you not far away.

What are the causes of breast cancer

1. The age of 20 is a threshold, and the incidence trend is on the rise. Incidence rate incidence rate of breast cancer is increasing with age, but it is rare before menarche. It is also rare before 20 years old. But after 20 years old, the incidence of breast cancer is increasing rapidly, 45~50 years old is higher, but relatively flat, the incidence rate of menopause continues to rise, reaching the peak at 70 years old, the mortality rate increases with age, and after 25 years old, the mortality rate gradually increases until old age. It is always on the rise. 　　

2. Non invasive carcinoma. Is the early stage of breast cancer, when the tumor is confined to the breast duct or acinus, without breaking through its basement membrane, called non-invasive cancer. In ductal carcinoma, the cancer cells were confined in the duct and did not break through the basement membrane. Most of them occurred in small and medium-sized catheters, but the larger catheters were rare. Lobular carcinoma in situ, which occurs in the epithelial cells of lobular duct and terminal duct, is more common in premenopausal women. The age of onset is 5-10 years earlier than that of general breast cancer. The lobules were enlarged, tubules and vesicles were increased and thickened obviously, filled with nonpolar cancer cells. Lobular carcinoma in situ develops slowly and has a good prognosis. 　　

3. Invasive nonspecific carcinoma. Invasive lobular carcinoma, lobular carcinoma obviously infiltrates outside the lobule, including small cell invasive carcinoma. Invasive ductal carcinoma, ductal carcinoma obviously infiltrates the stroma, but the infiltrating part is not more than half of the cancer parenchyma. If more than half of the cases were involved, they were named after the main form of invasive carcinoma. In hard cancer, the cancer cells are arranged in thin bundles or scattered distribution, rarely forming adenoid structure, and the fibrous stromal components account for more than two-thirds, and are dense.

matters needing attention

The impact of the disease on patients is great, so patients in the daily if the symptoms of the disease, also need to go to the regular hospital for treatment as soon as possible, so as not to delay the disease, leading to disease aggravation.