Your body is made up of trillions of cells, all quietly doing their jobs: growing, dividing, dying, repeating. It’s an insanely organised system. But sometimes, one cell goes rogue. It stops following the rules. It keeps dividing when it shouldn’t, refuses to die when it’s supposed to, and starts recruiting other cells to do the same. When this mutiny happens in breast tissue, that’s breast cancer.
And before we go further: yes, this affects men too. Not just women. Not just older women. Not just women with a family history. Anyone with breast tissue is at risk.
What Actually Happens Inside the Breast?
The breast is made up of lobules (milk-producing glands), ducts (tubes that carry milk to the nipple), and fatty and connective tissue. Cancer can start in any of these, but most breast cancers begin in the ducts or lobules.
When cells in these tissues start multiplying out of control, they form a lump or mass called a tumour. Not all tumours are cancerous. Benign (non-cancerous) tumours exist too and don’t spread. But malignant tumours can invade nearby tissue and, in advanced stages, travel to other parts of the body through the lymphatic system or bloodstream.
This spreading process is called metastasis, and it’s what makes cancer dangerous.
Types of Breast Cancer You Should Know
Not all breast cancer is the same, and understanding the type matters enormously for treatment. Here’s a quick breakdown:
Ductal Carcinoma In Situ (DCIS): Abnormal cells are found inside the milk ducts, but they haven’t spread yet. Considered stage 0, early, localised, and highly treatable.
Invasive Ductal Carcinoma (IDC): The most common type. Cancer that started in the ducts but has now broken through and invaded surrounding breast tissue. Accounts for roughly 80% of all breast cancer diagnoses.
Invasive Lobular Carcinoma (ILC): Starts in the lobules and spreads from there. Often harder to detect on a mammogram because it doesn’t always form a distinct lump.
Triple-Negative Breast Cancer (TNBC): Doesn’t have receptors for oestrogen, progesterone, or HER2, which means hormone therapy doesn’t work on it. More aggressive, more common in younger women, and more common in South Asian and Black women than previously recognised.
HER2-Positive Breast Cancer: Overproduces a protein called HER2 that promotes cancer cell growth. Tends to be aggressive but responds well to targeted therapies.
Hormone Receptor-Positive Breast Cancer: Feeds on oestrogen or progesterone. The most common subtype overall, often slower-growing and highly treatable with hormone-blocking drugs.
The Risk Factors — Some You Know, Many You Don’t
Yes, genetics play a role. Mutations in the BRCA1 and BRCA2 genes significantly increase lifetime risk, and these mutations exist in Indian families too, though they’re massively underscreened for.
But here’s what’s less talked about:
Oestrogen exposure over a lifetime matters. The longer your body is exposed to oestrogen, the higher the risk. Starting periods before age 12, reaching menopause after 55, never breastfeeding, and using hormone replacement therapy for extended periods all raise oestrogen exposure time.
Lifestyle factors are real contributors. Obesity (especially post-menopause), alcohol consumption, physical inactivity, and smoking have all been linked to increased breast cancer risk. In urban India, where sedentary jobs, processed food, and late-night eating patterns are increasingly common, these factors are becoming more relevant.
Dense breast tissue. Indian women often have denser breast tissue than Western populations, which both makes mammograms harder to read and is independently associated with higher risk.
Night shift work. Studies suggest that disruption of circadian rhythm, like working night shifts regularly, may influence breast cancer risk through melatonin suppression. Worth knowing if that applies to you.
Signs and Symptoms That Go Beyond the Obvious Lump
Everyone knows to look for a lump. But breast cancer doesn’t always announce itself that way. Watch for:
A lump or thickening in the breast or underarm that wasn’t there before. Changes in the size, shape, or appearance of the breast. Skin that looks dimpled, puckered, or like orange peel texture (this is caused by lymph blockage under the skin). Redness, scaliness, or flaking on the nipple or surrounding skin. A nipple that suddenly turns inward, or discharge that isn’t breast milk. Persistent pain in one part of the breast that doesn’t go away with your menstrual cycle.
None of these symptoms automatically mean cancer, but all of them mean you should see a doctor immediately.
How Is Breast Cancer Diagnosed?
Diagnosis usually involves multiple steps:
A clinical breast exam by a doctor. Imaging, typically a mammogram (X-ray of the breast) or ultrasound. In India, ultrasound is often used first due to denser breast tissue in our population. MRI for high-risk individuals. And most critically, a biopsy, where a small tissue sample is removed and examined under a microscope. A biopsy is the only way to confirm a breast cancer diagnosis.
If cancer is confirmed, further testing determines the stage (how far it’s spread) and receptor status (what the cancer is feeding on), both of which guide the treatment plan.
Can Breast Cancer Be Prevented?
There’s no guaranteed way to prevent breast cancer. But there are things that genuinely lower risk:
Maintaining a healthy body weight, especially after menopause. Regular physical activity, even 150 minutes a week of moderate exercise, makes a difference. Limiting alcohol. Breastfeeding, which appears to have a protective effect. Regular self-exams and clinical screenings, so that if something does develop, it’s caught early.
In India, awareness of breast self-examination (BSE) is still low. The monthly ritual of checking your own breast tissue, ideally 3 to 5 days after your period ends, can literally save your life by catching early changes you’d otherwise miss.
The Earlier, The Better — Why Staging Matters
Breast cancer caught at Stage I has a 5-year survival rate of over 99%. Stage IV, where cancer has metastasised to other organs, drops significantly. This isn’t to scare anyone. It’s to emphasise that early detection isn’t just a slogan; it is the single most powerful tool we have right now.
In India, too many cases are still being caught at Stage III or IV, partly due to lack of awareness, partly due to stigma, and partly due to limited access to screening. Changing that starts with knowing what to look for and not waiting to see a doctor.
Quick Recap
Breast cancer is an uncontrolled growth of cells in the breast tissue. It has multiple types, and treatment depends heavily on the type and stage. Risk factors include genetics, oestrogen exposure, lifestyle factors, and body weight. Symptoms go beyond a lump; skin changes, nipple changes, and persistent pain all matter. Early detection through self-exams, clinical exams, and imaging is your biggest defence. Yes, men can get it too.
FAQs
What are the early signs of breast cancer?
Early signs include a lump in the breast, changes in size or shape, skin dimpling, or nipple discharge.
What are the first signs of breast cancer?
The first signs are often a painless lump, changes in breast appearance, or unusual nipple changes.
What does a breast cancer lump feel like?
It usually feels hard, irregular in shape, and does not move easily when touched.
What is the treatment for breast cancer?
Treatment includes surgery, chemotherapy, radiation, and targeted therapy depending on the stage.
