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MedoPulseHealth journal
Health Conditions
Source guide

Breast Cancer

Breast cancer is a condition where cells in the breast grow abnormally. It is the most common cancer among women globally. Understanding risk factors, recognizing symptoms early, and regular screening can support timely care and better outcomes.

Prepared from the sources listed below. This overview is educational and is not a diagnosis or treatment plan.

A calming, abstract composition of soft cream and deep teal organic shapes symbolizing health and care.
A calming, abstract composition of soft cream and deep teal organic shapes symbolizing health and care.

Overview

A clear starting point

Breast cancer is a disease in which abnormal cells in the breast grow out of control, forming a tumor. It is the most common cancer among women worldwide, though it can also affect men. The condition typically begins in the milk ducts or lobules and, if left unchecked, can spread to other parts of the body. While certain factors like age and family history can increase risk, many cases occur without identifiable risk factors. Early detection through awareness of symptoms and regular screening is emphasized by health authorities as a key factor in improving outcomes.

Four key facts

  1. 1Breast cancer can begin in different parts of the breast, most commonly in the ducts or lobules.
  2. 2While it predominantly affects women, approximately 0.5–1% of breast cancers occur in men.
  3. 3Risk increases with age, and most breast cancers are diagnosed in women over 50.
  4. 4About 80% of breast cancers occur in individuals with no specific risk factors other than sex and age.

Useful points to discuss

Maintain a healthy lifestyle, including regular physical activity and limiting alcohol intake, to help reduce risk.
Be familiar with how your breasts normally look and feel, and report any changes to a healthcare provider promptly.
Discuss your personal and family medical history with a doctor to understand your risk and determine an appropriate screening schedule.

When professional care may be important

These examples are not a diagnosis checklist. New, severe, rapidly worsening, or concerning symptoms should be assessed by a qualified healthcare professional; emergencies require local emergency services.

  • A new lump or thickening in the breast or underarm area.
  • Changes in the size, shape, or appearance of the breast, including skin dimpling or redness.
  • Unusual fluid or bloody discharge from the nipple, or the nipple turning inward.

Source trail

Authoritative references

Source publishers and titles are listed as non-clickable references so this page never sends visitors to another website.

  1. 1. World Health Organization (WHO)Breast cancerPublished or updated 2026-07-03
  2. 2. Centers for Disease Control and Prevention (CDC)Symptoms of Breast CancerPublished or updated 2026-04-15
  3. 3. Centers for Disease Control and Prevention (CDC)Breast Cancer BasicsPublished or updated 2026-04-16
  4. 4. Centers for Disease Control and Prevention (CDC)Breast Cancer Risk FactorsPublished or updated 2026-04-15
  5. 5. ICMR- National Institute of NCD EpidemiologyDIAMOnDS - Breast Cancer Burden