How is breast cancer transmitted?

It's not. Breast cancer is not transmitted from one person to another. It starts as a normal cell in the breast. The cell is damaged and instead of dying, it starts dividing, making more damaged cells that also divide. That's breast cancer in a nutshell... Breast cells that keep dividing and don't stop.
Lymphatic System. Breast cancer cells travel through the body via the lymphatic system. The lymphatic system is a series of vessels that drain lymphatic fluid throughout the body. Lymph nodes are lima bean sized organs that filter the fluid for foreign particles and cancer cells. A sentinel lymph node is the first lymph node to which a cancer spreads.

Related Questions

How exactly is breast cancer transmitted?

Multiple reasons. Most likely multiple factors at play including genetics, exposures (including alcohol), and hormonal factors.
Not transmitted. It is essential that you know that breast cancer is not "transmitted" like an infectious disease. It is not contagious (though there is a mouse form that is passed mother-to-daughter). A woman develops breast cancer through mutations over the course of many years. Hope this is the answer you sought, and good luck.

Symptoms of breast cancer?

Sometimes none. Breast cancer does not always have symptoms. When it does, there may be a non tender lump in the breast, dimpling of the skin, inversion of the nipple, bloody nipple discharge, or sore lymph nodes in the underarm. When breast cancer has spread, it can lead to symptoms in the areas of spread. For example a patient with bone metastasis may experience bone pain.
Maybe none. Early breast cancer has no signs or symptoms. Breast cancer may later present as a painless firm breast lump. Rarely changes in color of the skin, sometimes nipple will get retracted or breast skin pulled inward. Best is to have yearly physical examination and mammogram after age 40 before these symptoms occur. Any breast lump, painful or not, should be examined by your doctor.
Many or none. Proper screening with self breast exams looking for new lumps, breast exams by your physician looking for skin or nipple chanes as well as masses or lymph nodes, and mammogram and ultrasound if needed are the best ways to pick up early stage breast cancer before it causes any symptoms. Once advanced it can cause many different symptoms throughout the body.

Symptoms of breast cancer?

A lump in the breast. This is how most women discover their breast cancer. However most such lumps turn out to be benign. If you do monthly breast self exam, you will be able to tell if you have any new lumps. They are often painless and grow in size if left unattended for more then 1 or 2 months. The tumor can also spread outside of the breast if not treated. Promptly.

Is breast cancer inherited?

Sometimes. It is estimated that approximately 10-15% of all breast cancers in the US are of the hereditary type. These genes can be inherited from either your father or your mother. If a woman inherits this gene, they have a 50-75% chance of developing breast cancer in their lifetime. These cancers tend to occur at any earlier age and may occur in both breasts.
It can be. Even with a family history of breast cancer, the majority of breast cancers are known as "sporadic"; approximately 5-10% of inherited breast cancers are related to a mutation in the brca 1 or brca 2 genes.
Can be. It can be, although the vast majority of women with breast cancer do not have a family history.
Genetics. There is a genetic compnent of risk for breast cancer. It is possible that if particular family members (Mother, Sister, Grandmother...) have had breast cancer that you are at higher risk for breast cancer. If you have a concern about this, please discuss your risk and what you can do about it with your family doctor or surgeon.

What is breast cancer from?

Breast gland tissue. The most common form of breast cancer arises from the cells that line the walls of the mild ducts (i.e. Ductal carcinoma in situ dcis or invasive ductal carcinoma). The next most common type is invasive lobular cancer a which arises from the lobules or sacs at the end of the milk ducts. Other origin tumors such as met aplastic are amuch more rare.
Breast cancer. Cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.
I wish we knew! We really don't know what causes breast cancer. We do know that women with a long exposure to estrogen are at a higher risk. If you started your period early, or never got pregnant, you have more estrogen exposure. But these are things you can't really change. However, alcohol intake is associated with breast cancer, so decrease how much you drink. And lower your body fat. And avoid bpa plastics.

Can I inherit breast cancer?

Yes. Approximately 10-15% of breast cancers in the US are hereditary. Most of these arise due to a mutation in the BRCA genes. These can be determined by a simple blood test. Approximately 2/3 of all women with one of these mutations will eventually develop breast cancer. There is a 50:50 chance that any child will inherit this mutation.
Depends.. Hereditary breast cancer occurs approximately in 15% of cases- majority of breast cancer is sporadic disease. Your risk will depend on how significant your family history of breast cancer, ovarian cancer, or other type of cancer- such as colon, endometrial/uterine cancer etc. The more significant your family history of cancer- the higher is your risk of having an inherited/hereditary cancer.
Not directly. Breast cancer is not directly passed from parent to child. However, an increased risk of developing breast cancer can be inherited. Mutations in the genes brca1 and brca2 increase your chance of developing breast cancer. You are not 100% guaranteed to get breast cancer if you inherit these genes, but the risk can be as high as 85%.

Is breast cancer hereditary?

Sometimes. It is estimated that 10-15% of all breast cancer cases in the us occur due to hereditary factors. This risk may be identified by doing a simple blood test to check for brca mutations. We generally advise testing family members with known breast cancers first before checking unaffected family.
Majority not. Majority of breast cancer is sporadic disease. Only in about 15% could be hereditary in nature. Some other risk factors will include- dietary habits, red meat, alcohol, tobacco, sedentary, obesity, hormones use, previous radiation therapy to the chest wall etc.
Can be. It can be, although the vast majority of women with breast cancer do not have a family history.

How common is breast cancer?

Lifetime risk 1 in 8. It is estimated that women in the US have a 1 in 8 lifetime risk of developing breast cancer, with the median age at diagnosis of 60. Common misconceptions include "I have no family risk" or "I am too old to get breast cancer". In truth, most cases occur in people without a family history and the incidence increases the older one gets. See: http://seer. Cancer. Gov/statfacts/html/breast. Html.
Pretty common. Estimated new cases and deaths from breast cancer in the United States in 2012: new cases: 226, 870 (female); 2, 190 (male) and 39, 510 (female); 410 (male) deaths. Lifetime risk is 1 to 8. Risk is higher with the increased of age.

Any odor with breast cancer?

No. Unless there is an open wound on the breast from an ulcerating cancer, there would be no odor.