![]() ![]() Taking hormone replacement therapy (estrogen plus progestin) for more than 5 years.Beginning to menstruate at an early age.In post-menopausal women: obesity and physical inactivity.No full term pregnancies or having a full term first pregnancy after age 30.Previous breast disorders with biopsies showing abnormal cells.Family history of breast cancer, especially in a mother, sister or daughter diagnosed before menopause, or if a mutation on the BRCA1 or BRCA2 genes is present.Age: 83% of the cases of breast cancer occur in women over 50 years of age.There is no single cause of breast cancer but some factors that increase the risk of developing the disease include: Please refer to the Breast Cancer in Canada infographic for more information. Ductal carcinoma is the most common type of breast cancer, accounting for approximately 90% of all in situ breast carcinomas and 70% of all invasive breast carcinomas. Cancer cells may start within the ducts (ductal carcinoma) or lobules (lobular carcinoma). Almost all breast cancers start in the glandular tissue of the breast and are known as adenocarcinomas.1 in 8 women are expected to develop breast cancer during her lifetime and 1 in 33 will die of it.Breast cancer accounts for approximately 25% of new cases of cancer and 13% of all cancer deaths in Canadian women. ![]() Approximate number of women developing breast cancer over the next five years. Difference in breast cancer incidence per 1,000 women aged 50-59. In 2019 an estimated 26,900 Canadian women will be diagnosed with breast cancer and 5,000 will die of it. Understanding the risks of breast cancer comparison of lifestyle risk factors versus Hormone Replacement Therapy (HRT) treatment.Breast tissue covers a larger area than just the breast, extending up to the collarbone and from the armpit to the breastbone. Breast cancer starts in the cells of the mammary gland. While it can also be found in men, male breast cancer is a very rare occurrence. Older men who are overweight or have obesity have a higher risk of getting breast cancer than men at a normal weight.Breast cancer is the most common cancer in Canadian women, with the exception of non-melanoma skin cancer. Cirrhosis (scarring) of the liver can lower androgen levels and raise estrogen levels in men, increasing the risk of breast cancer. Injury to, swelling in, or surgery to remove the testicles can increase breast cancer risk. Certain conditions that affect the testicles.This can lead to the body making higher levels of estrogen and lower levels of androgens (hormones that help develop and maintain male sex characteristics). Klinefelter syndrome is a rare genetic condition in which a male has an extra X chromosome. Drugs containing estrogen (a hormone that helps develop and maintain female sex characteristics), which were used to treat prostate cancer in the past, increase men’s breast cancer risk. Men who had radiation therapy to the chest have a higher risk of getting breast cancer. A man’s risk for breast cancer is higher if a close family member has had breast cancer. Inherited changes (mutations) in certain genes, such as BRCA1 and BRCA2, increase breast cancer risk. Most breast cancers are found after age 50. The risk for breast cancer increases with age. Having risk factors does not mean you will get breast cancer. Several factors can increase a man’s chance of getting breast cancer. If you have any symptoms or changes, see your doctor right away. These symptoms can happen with other conditions that are not cancer. Pulling in of the nipple or pain in the nipple area.The most common symptoms of breast cancer in men are. The cancer cells are only in the lining of the ducts, and have not spread to other tissues in the breast. Ductal carcinoma in situ (DCIS) is a breast disease that may lead to invasive breast cancer.These invasive cancer cells can also spread to other parts of the body. Cancer cells begin in the lobules and then spread from the lobules to the breast tissues that are close by. Invasive cancer cells can also spread, or metastasize, to other parts of the body. The cancer cells begin in the ducts and then grow outside the ducts into other parts of the breast tissue. The most common kinds of breast cancer in men are the same kinds in women. About 1 out of every 100 breast cancers diagnosed in the United States is found in a man. Learn about symptoms of breast cancer in men and things that may increase your risk.īreast cancer is most often found in women, but men can get breast cancer too. Although it is rare, men can get breast cancer. ![]()
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