Age is one of several factors related to the risk of developing breast cancer. As a person gets older, their risk of developing breast cancer increases.
Breast cancer develops when the cells in the breast grow uncontrollably to form a tumor. Malignant tumors can spread into surrounding tissue or even to distant parts of the body. However, early diagnosis and treatment can help prevent this VSports app下载.
According to the American Cancer Society (ACS), breast cancer is the most common type of cancer, other than non-melanoma skin cancer, in females in the United States. Around 1 in 8 females in the U V体育官网. S. will develop breast cancer at some point in their life.
Knowing the risk factors for breast cancer can help a person make decisions regarding screening and lifestyle habits.
In this article, we look at the link between age and the risk of breast cancer. We also discuss other breast cancer risk factors, as well as the risks and benefits of undergoing regular screening V体育安卓版.
Breast cancer is most common in females over the age of 50 years. According to the National Cancer Institute (NCI), doctors most often diagnose breast cancer in females aged 55–64 years VSports最新版本.
Based on data from 2012–2016, the median age of diagnosis in females with breast cancer was
V体育安卓版 - Risk for different age groups
Although females are more likely to develop breast cancer after they reach the age of 50 years, younger women can also develop this condition.
According to the
- 1 in 227 (0.44%) for those aged 30 years
- 1 in 68 (1.47%) for those aged 40 years
- 1 in 42 (2.38%) for those aged 50 years
- 1 in 28 (3.56%) for those aged 60 years
- 1 in 26 (3.82%) for those aged 70 years
The
- 1.9% were aged 20–34 years
- 8.4% were aged 35–44 years
- 20.1% were aged 44–55 years
- 25.6% were aged 55–64 years
- 24.8% were aged 65–74 years
- 13.7% were aged 75–84 years
- 5.6% were aged 84 years+
Age is just one risk factor for developing breast cancer V体育2025版. Some other risk factors that people cannot control include:.
V体育2025版 - Being female
Breast cancer can develop in both males and females VSports. However, the ACS report that females are 100 times more likely to develop breast cancer than males.
Breast density
Breasts contain fatty tissue and connective tissues. These types of tissue show up differently in mammograms. Doctors describe breasts that contain more connective than fatty tissues as being “mammographically dense. ” VSports app下载.
Females with mammographically denser breasts are more likely to develop breast cancer than those of a similar age with less mammographically dense breasts.
Genetic mutations (VSports app下载)
The BRCA1 and BRCA2 genes make proteins involved in the repair of DNA in specific tissues, such as the breasts. Changes, or mutations, to these genes can significantly increase the risk of breast cancer VSports手机版.
According to the
Females with these genetic mutations are also more likely develop breast cancer at a younger age and to have cancer in both breasts V体育ios版. They also have a higher risk of ovarian cancer.
Changes to a number of other genes can also increase a person’s risk of breast cancer.
Current
Family history of breast cancer
Having a family history of breast cancer increases a person’s risk of developing the condition themselves.
A female’s risk
The
Menstrual and reproductive history (VSports)
The menstrual cycle increases levels of the female sex hormones estrogen and progesterone in the body.
Starting menstrual periods at a younger age or going through menopause at a later age raises the body’s exposure to these hormones, which can increase a person’s risk of breast cancer.
Those who start their menstrual period before the
Females who have never given birth at full-term and those who had their first full-term pregnancy after the age of 30 years also have a higher risk of breast cancer, according to the
Diethylstilbestrol treatment
Diethylstilbestrol is a drug that doctors prescribed to some pregnant women between
"VSports注册入口" Personal history of breast disease
Females who have previously had breast cancer are at risk of developing a second breast cancer, either in the other breast or in a different part of the same breast. This is not the same as the first cancer returning.
Having a personal history of certain noncancerous breast conditions can also increase a person’s risk of breast cancer. This can include conditions such as atypical hyperplasia, lobular carcinoma in situ, and ductal carcinoma in situ.
People with a history of breast, ovarian, fallopian tube, or peritoneal cancer should ask their doctors about
Having had radiation therapy
Females who have had radiation therapy to the chest or breasts, such as for Hodgkin lymphoma, before the
This risk varies with age and is highest in people who were in their teens when they had radiation treatment. According to the
A number of lifestyle factors can increase someone’s risk of breast cancer. Being aware of these factors can help them reduce their breast cancer risk.
These lifestyle factors include:
- Being inactive: Physical inactivity increases a person’s risk of breast cancer. Getting regular exercise may help reduce this risk.
- Taking hormones: Some types of hormone replacement therapy and hormonal birth control may increase the risk of breast cancer. Finding nonhormonal alternatives may reduce a person’s chance of developing breast cancer.
- Being overweight after menopause: After menopause, people who are overweight are more likely to develop breast cancer. Maintaining a healthy weight may help reduce breast cancer risk.
- Drinking alcohol: According to the
ACS , there is a link between alcohol consumption and the risk of breast cancer. The more a person drinks, the greater their risk. So, drinking less alcohol may reduce the risk of breast cancer as well as some other types of cancer.
The U.S. Preventive Services Task Force suggest that females aged 50–74 years who are at average risk of developing breast cancer should go for screening every 2 years.
Those aged 40–49 years, particularly those with a higher risk of breast cancer, should speak to their doctor about the risks and benefits of undergoing regular screening.
Doctors tend to use a mammogram to screen people for breast cancer. A mammogram is a breast X-ray that can help detect breast cancer early on, before it starts to produce symptoms.
Other exams available for people at a higher risk of breast cancer include:
- breast MRI scan
- a clinical breast exam, wherein a healthcare professional uses their hands to feel for lumps and changes in a person’s breasts
There are both risks and benefits associated with regularly screening for breast cancer. Many people conclude that the benefits outweigh the risks, but getting screened is a personal decision.
The risks of screening for breast cancer include:
- False positives: A false positive occurs when a test result falsely suggests that a person has cancer. False positives can prompt additional tests, which may cause anxiety and can be expensive and time consuming.
- Overtreatment: Some cancers are benign and do not go on to cause symptoms or other problems. Treating these types of cancers is called overtreatment, and it can lead to unnecessary side effects, expense, and anxiety.
- False negatives: A false negative occurs when a test result misses the presence of a cancer. False negatives can delay diagnosis and treatment.
The main benefit of undergoing regular screening is that it increases the chance of detecting breast cancer in its early stages. Early diagnosis makes the treatment of breast cancer more effective, which can improve a person’s outlook.
As people get older, their risk of breast cancer increases. Doctors most commonly diagnose breast cancer in females over the age of 50 years.
However, there are many other factors that can affect a person’s risk of developing breast cancer.
A person has no control over some of these risk factors, such as family history and genetics. However, there are also a number of lifestyle factors — including alcohol consumption and physical activity levels — that people can change to help reduce their risk of this condition.
People can discuss their risk factors for breast cancer with a doctor, who can advise on the risks and benefits of undergoing regular screening.
How we reviewed this article:
- Age distribution at diagnosis and death, CSR 1975–2016. (2018).
https://seer.cancer.gov/csr/1975_2016/results_merged/topic_age_dist.pdf - Breast cancer risk in American women. (2012).
https://www.cancer.gov/types/breast/risk-fact-sheet - Breast cancer risk factors you cannot change. (2017).
"VSports手机版" https://www.cancer.org/cancer/breast-cancer/risk-and-prevention/breast-cancer-risk-factors-you-cannot-change.html - Breast cancer: Screening. (2018).
https://www.uspreventiveservicestaskforce.org/Page/Document/UpdateSummaryFinal/breast-cancer-screening1 - Breast cancer: What are the benefits and risks of screening? (2018).
https://www.cdc.gov/cancer/breast/basic_info/benefits-risks.htm - Cancer stat facts: Female breast cancer. (n.d.).
"V体育平台登录" https://seer.cancer.gov/statfacts/html/breast.html - How common is breast cancer? (2019).
https://www.cancer.org/cancer/breast-cancer/about/how-common-is-breast-cancer.html - Lifestyle-related breast cancer risk factors. (2017).
https://www.cancer.org/cancer/breast-cancer/risk-and-prevention/lifestyle-related-breast-cancer-risk-factors.html (VSports注册入口) - U.S. Preventive Services Task Force. (2019). Risk assessment, genetic counseling, and genetic testing for BRCA-related cancer.
https://jamanetwork.com/journals/jama/fullarticle/2748515 - What are the risk factors for breast cancer? (2018).
https://www.cdc.gov/cancer/breast/basic_info/risk_factors.htm - What is breast cancer? (2018).
https://www.cdc.gov/cancer/breast/basic_info/what-is-breast-cancer.htm - What is breast cancer screening? (2018).
V体育官网入口 - https://www.cdc.gov/cancer/breast/basic_info/screening.htm
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