Your Breast Cancer Journey: What to Expect, How to Cope, and Moving Forward

Overview

Breast cancer occurs when abnormal cells in the breast grow out of control. It is the most common cancer diagnosed in people assigned female at birth, though it can also affect men. Thanks to advances in screening and treatment, most people diagnosed with early-stage breast cancer go on to live long, healthy lives. This guide covers what to expect at every stage of your breast cancer journey, from diagnosis to long-term survivorship, with practical tips and support resources.

Signs & Symptoms

Some people have no noticeable symptoms in the early stages of breast cancer, and the disease is first found during a routine screening mammogram. When symptoms do appear, they can include a new hard, irregular lump in the breast or underarm that does not move when touched; changes in breast size, shape, or texture, including dimpling, redness, or scaling of the skin; nipple changes such as inversion, discharge (not breast milk), or scaling; and persistent breast pain that does not go away with your menstrual cycle.

Causes & Risk Factors

Doctors do not always know exactly what causes breast cancer, but it develops when abnormal breast cells mutate and grow faster than healthy cells, forming a tumor. Certain factors can increase your risk of developing the disease:

Diagnosis

If a lump is found during a self-exam or clinical exam, or an abnormal result appears on a screening mammogram, your care team will order additional tests to confirm a diagnosis. This usually includes a biopsy (removing a small sample of breast tissue to test for cancer cells), as well as imaging tests like ultrasounds or MRIs. You will also have tests to determine the cancer’s type, stage (how far it has spread), and receptor status (whether it uses hormones like estrogen or progesterone to grow, or has excess HER2 protein), which guide your treatment plan.

Treatment & Management

• Personalized treatment plans: Your care team will tailor treatment to your cancer’s type, stage, receptor status, overall health, and your preferences. Common options include:
• Surgery: Removes the tumor and sometimes surrounding tissue. A lumpectomy removes only the tumor, while a mastectomy removes the entire breast.
• Radiation therapy: Uses high-energy rays to kill any remaining cancer cells after surgery, most often used after a lumpectomy.
• Chemotherapy: Uses powerful drugs to kill fast-growing cancer cells, and may be given before surgery to shrink tumors or after surgery to eliminate remaining cells.
• Hormone therapy: Blocks the hormones that fuel hormone receptor-positive breast cancers, and is usually taken for 5–10 years after initial treatment.
• Targeted therapy: Targets specific abnormalities in cancer cells, such as excess HER2 protein, and often has fewer side effects than chemotherapy.
• Immunotherapy: Helps your immune system recognize and attack cancer cells, used for certain advanced or triple-negative breast cancer types.
• Side effect management: Your care team can provide medications and strategies to manage common side effects like fatigue, nausea, and lymphedema, and palliative care can support your quality of life at any stage.

Living With It

A breast cancer diagnosis and treatment can impact every part of your life, from your physical health to your relationships, work, and emotional well-being. It is normal to feel overwhelmed, anxious, or scared, and it is okay to ask for help from your care team, loved ones, and support services. Practical tips for daily living include: connecting with a breast cancer support group to share experiences with people who understand; working with a physical therapist to manage lymphedema or regain mobility after surgery; prioritizing gentle, regular movement like walking or stretching as tolerated to reduce fatigue and improve mood; speaking with a mental health professional if you are struggling with anxiety, depression, or fear of cancer recurrence; and keeping a symptom journal to track side effects and share updates with your care team at appointments.