Breast Cancer

Breast cancer is 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.

HER-2 Positive Breast Cancer

Human epidermal growth factor receptor 2 (HER2) is a gene that can play an important role in the development of some types of breast cancer. This gene is also sometimes referred to as Erc-B2 receptor tyrosine kinase 2 (ERBB2). This gene is involved in the production of HER2 proteins, which are present on breast cells as receptors to control the growth, division, and repair of the cells.

Breast Cancer Society and Culture

What is Invasive Ductal Breast Cancer?

Gail Model (Breast Cancer Risk Assessment Tool)

Intraductal Papilloma - Benign Tumors of the Breast

Microwave Imaging for Breast Cancer: Procedure

What is a Mammary Gland?

Surgery for Breast Cancer

What is Metastatic Breast Cancer?

Breast Cancer Awareness

Treating Breast Oil Cysts

What Does a Sentinel Node Biopsy Involve?

See more featured articles »

Genetics of Breast Cancer

What Does a Quadrantectomy Involve?

Sentinel Lymph Nodes

What is Breast Reconstruction?

Hormone Receptor Positive Breast Cancer

Axillary Sampling and Sentinel Node Biopsy Comparison

A Guide to Checking your Breasts for Lumps

Axillary Lymph Nodes and Breast Cancer

Post-Mastectomy Pain

Microcalcifications in Breast Cancer

What is Triple Negative Breast Cancer?

PARP Inhibitors For Hard-To-Treat Cancers

Breast Cancer Prognosis

The Importance of Hormone Status in Breast Cancer: A Guide to Hormone Dependent Breast Cancer (HDBC)

What is the BRCA2 Gene?

Breast Cancer Symptoms

Breast Cancer Epidemiology

Pathophysiology of the Link Between Obesity and Breast Cancer

History of Breast Cancer

What is the BRCA1 Gene?

Radiotherapy for Breast Cancer

Types of Breast Cancer

Microwave Imaging for Breast Cancer Versus X-Ray Mammograms

Breast Cancer Management

Living with Breast Cancer

Treating Breast Cancer Using Antibiotics

What are Aromatase Inhibitors?

Thermography versus Mammography: Which is Best?

Radial Scar of the Breast

Breast Cancer Causes

Breast Cancer Diagnosis

Detecting breast cancer in dense breasts

What is the HER2 Gene?

Radial Scar Diagnosis and Management

Breast Cancer Screening

Familial Breast Cancer

What is Breast Cancer?

Preventing Breast Cancer

Chemotherapy for Breast Cancer

Breast Cancer Pathophysiology

What is Ductal Carcinoma in Situ (DCIS)?

Breast Cancer Classification

Latest Breast Cancer News and Research

Early pregnancy reshapes breast aging and lowers cancer risk

A new study by cell biologists at the University of California, Santa Cruz, suggests that an early first pregnancy may protect against breast cancer decades later by preventing age-related changes in breast cells that are linked to tumor formation.

3 Feb 2026

Cardiologists highlight overlooked heart risks across women’s lives

Heart disease remains the leading cause of death for women in the United States, yet awareness of cardiovascular risk—particularly among younger women and women of color—has stalled, even as rates of high blood pressure, diabetes, obesity, and high cholesterol continue to rise.

3 Feb 2026

NIH grant disruptions slow down breast cancer research

Inside a cancer research laboratory on the campus of Harvard Medical School, two dozen small jars with pink plastic lids sat on a metal counter. Inside these humble-looking jars is the core of Joan Brugge's current multiyear research project.

3 Feb 2026

Most commercially insured patients live with chronic conditions

The majority (57.5 percent) of commercially insured patients had at least one chronic condition in 2024. The average allowed amount for a patient with no chronic conditions was $1,590, while the average allowed amount for a patient with one chronic condition was nearly double ($3,039).

2 Feb 2026

New liquid biopsy detects early cancers through epigenetic instability

Researchers at the Johns Hopkins Kimmel Cancer Center have developed a novel liquid biopsy approach to identify early-stage cancers by measuring the random variation in DNA methylation patterns, rather than the absolute level of those patterns as in other liquid biopsies.

2 Feb 2026

Miniaturized ultrasound system may enable earlier detection of breast cancer

For people who are at high risk of developing breast cancer, frequent screenings with ultrasound can help detect tumors early. MIT researchers have now developed a miniaturized ultrasound system that could make it easier for breast ultrasounds to be performed more often, either at home or at a doctor's office.

2 Feb 2026

Your next primary care doctor could be online only, accessed through an AI tool

When her doctor died suddenly in August, Tammy MacDonald found herself among the roughly 17% of adults in America without a primary care physician.

2 Feb 2026

Palbociclib improves progression-free survival in HER2 positive breast cancer

PrECOG, LLC, today announced the publication of final results from the pivotal phase 3 PATINA study in the New England Journal of Medicine (NEJM).

30 Jan 2026

AI-supported mammography improves early detection of breast cancer

Artificial intelligence (AI)-supported mammography identifies more cancers during screening and reduces the rate of breast cancer diagnosis by 12% in the years following, finds the first randomised controlled trial of its kind involving over 100,000 Swedish women published in The Lancet journal.

30 Jan 2026

Time of radiotherapy can influence the effectiveness of cancer treatment

A team of researchers from the Andalusian Centre for Molecular Biology and Regenerative Medicine (CABIMER) and the University of Seville, in collaboration with the Virgen Macarena University Hospital, have identified a fundamental mechanism that links the 24-hour circadian cycle to the precise repair of DNA breaks.

30 Jan 2026

Soluble E-cadherin drives brain metastasis in aggressive inflammatory breast cancer

Researchers at The University of Texas MD Anderson Cancer Center have identified a targetable driver of brain metastases in patients with aggressive inflammatory breast cancer.

28 Jan 2026

Poop pills could help cancer patients respond to immunotherapy while reducing toxic side effects

Fecal microbiota transplants (FMT), can dramatically improve cancer treatment, suggest two groundbreaking studies published in the prestigious Nature Medicine journal.

28 Jan 2026

New nanomaterial kills cancer cells via oxidative stress

Scientists at Oregon State University have developed a new nanomaterial that triggers a pair of chemical reactions inside cancer cells, killing the cells via oxidative stress while leaving healthy tissues alone.

28 Jan 2026

Purdue researchers discover new therapeutic target for triple-negative breast cancer

A Purdue University team led by Kyle Cottrell has discovered a new therapeutic target for triple-negative breast cancer.

27 Jan 2026

Reducing alcohol consumption could ease Australia’s cancer burden

National data indicates that lowering alcohol consumption could prevent thousands of cancer deaths, emphasizing the importance of public health interventions.

27 Jan 2026

Orphan noncoding RNAs define cancer identity and enable blood-based monitoring

We knew we had something interesting with T3p, a single small RNA found in breast cancer but absent from normal tissue.

24 Jan 2026

Study identifies a powerful strategy to overcome drug resistance in breast cancer

A new preclinical study from researchers at The University of Texas MD Anderson Cancer Center, published today in Nature Communications, identifies a powerful strategy to overcome drug resistance in breast cancer by simultaneously targeting two key cell-cycle regulators, CDK2 and CDK4/6.

22 Jan 2026

AI tool predicts metastatic risk in multiple cancers

Why do some tumors spread while others remain localized? The mechanisms governing the metastatic potential of tumor cells remain largely unknown — yet understanding this is crucial for optimizing patient care.

22 Jan 2026

Reducing alcohol consumption could significantly lower cancer deaths

Reducing annual alcohol consumption in Australia by one litre a person could significantly lower deaths from several major cancers, particularly among older Australians, a new study led by La Trobe University has found.

21 Jan 2026

Decoupling of metabolism and vasculature in tumors revealed by novel Capillary-Cell microscopy

A multidisciplinary team from Harvard Medical School, Duke University, and Massachusetts General Hospital has developed the dual-scale Capillary-Cell (CapCell) microscope, a revolutionary tool for visualizing tumor metabolism and vasculature dynamics.

21 Jan 2026