Published: Sep 26, 2022

Breast cancer can be scary to think about. But knowing the signs can help you act early.

Breast cancer does not always start with a painful lump. Some people notice a lump. Some notice skin changes. Some notice nipple changes. Some notice swelling. Some have no symptoms and find it on a mammogram.

Inflammatory breast cancer can be even harder to spot. It may look like a rash, infection, swelling, warmth, or skin that looks like orange peel.

This guide explains breast cancer symptoms, inflammatory breast cancer warning signs, causes, risk factors, tests, treatment options, self-check tips, prevention steps, and when to see a doctor.

For more women’s health and cancer education, visit our Cancer Awareness & Prevention Hub, Women’s Health Hub, Medical Tests & Screenings Hub, and Health Hub.

Medical note: This article is for education only. It does not diagnose or treat breast cancer. If you find a new lump, breast swelling, nipple discharge with blood, nipple inversion, skin dimpling, breast redness, breast warmth, orange-peel skin, or a breast change that does not go away, book medical care. Seek urgent care for chest pain, severe shortness of breath, fainting, confusion, severe weakness, or symptoms that feel like an emergency.

Quick Answer: What are breast cancer symptoms?

Breast cancer symptoms can include a new lump, swelling, skin dimpling, nipple changes, nipple discharge, breast pain, armpit swelling, redness, thick skin, and a change in breast size or shape.

Possible symptoms include:

• A new breast lump
• A lump in the armpit
• Swelling in the breast, chest, or armpit
• A change in breast size
• A change in breast shape
• Skin dimpling
• Skin that looks like orange peel
• Red, pink, purple, or darker breast skin
• Warm breast skin
• Thick breast skin
• Nipple turning inward
• Nipple rash or crusting
• Nipple discharge, especially bloody discharge
• Breast pain that does not go away
• Itching that does not improve
• One breast looking different from normal

Most breast changes are not cancer. But new or lasting breast changes should be checked.

When to See a Doctor

Book a medical visit if you notice:

• A new lump in the breast
• A new lump in the armpit
• Breast swelling
• Skin dimpling
• Skin redness or color change
• Skin that looks like orange peel
• A nipple that turns inward
• Nipple discharge not linked to pregnancy or breastfeeding
• Bloody nipple discharge
• A nipple rash that does not heal
• A change in breast size or shape
• Breast pain that does not go away
• One breast becomes warm, heavy, or swollen

Do not wait months to see if it goes away. Early checks matter.

1. A New Breast Lump

A lump is the most well-known breast cancer sign.

A cancer lump may feel:

• Hard
• New
• Fixed in place
• Irregular
• Different from the rest of the breast
• Painless in some cases

But breast cancer lumps can also be soft, round, tender, or painful. You cannot tell by touch alone.

Many breast lumps are not cancer. They may be cysts, fibroadenomas, infections, hormonal changes, or other benign breast changes.

Still, any new lump should be checked.

2. A Lump or Swelling in the Armpit

Breast cancer can spread to lymph nodes near the breast. These lymph nodes are often in the armpit or near the collarbone.

You may notice:

• A small lump in the armpit
• Swelling under the arm
• Tender nodes
• Firm nodes
• Fullness near the collarbone

Swollen lymph nodes can also happen from infection, vaccines, skin irritation, or other causes.

If the swelling does not go away, get it checked.

3. Breast skin dimpling

Skin dimpling can look like a small dent, pull, or puckering area.

It may show more when you lift your arm or lean forward.

Dimpling can happen when tissue under the skin pulls inward.

See a doctor if you notice new dimpling, puckering, or pulling of the breast skin.

4. Skin That Looks Like Orange Peel

Skin that looks like orange peel is called peau d’orange.

It means the skin looks thick, pitted, or dimpled.

This can be a warning sign of inflammatory breast cancer.

Do not treat this as a simple skin rash if it is new, one-sided, warm, swollen, or not improving.

5. Redness or Colour Change

Breast redness can happen from infection, injury, eczema, allergy, or breastfeeding problems.

But redness or a colour change can also happen with inflammatory breast cancer.

On light skin, the breast may look red or pink. On brown or black skin, it may look darker, purple, bruised, or different from normal.

Get checked if the change is:

• New
• One-sided
• Spreading
• Warm
• Swollen
• Painful
• Not improving with treatment

6. Nipple Turning Inward

A nipple that turns inward is called an inverted nipple.

Some people naturally have inverted nipples. That can be normal.

But a new nipple change should be checked.

Watch for:

• A nipple that newly pulls inward
• A nipple that looks flatter
• A nipple that points in a new direction
• Nipple skin changes
• Nipple discharge

7. Nipple Discharge

Nipple discharge can happen for many reasons. It can be linked with hormones, medicines, pregnancy, breastfeeding, infection, or benign duct problems.

Get medical advice if the discharge is:

• Bloody
• Clear and comes from one nipple
• Happens without squeezing
• New
• Only on one side
• Linked with a lump
• Linked with nipple changes

8. Nipple Rash or Crusting

A rash on the nipple may look like eczema. It may itch, flake, crust, burn, or bleed.

Many rashes are not cancer. But a nipple rash that does not heal should be checked.

This is important because a rare breast cancer type called Paget's disease of the breast can affect the nipple area.

9. Change in Breast Size or Shape

Breasts are often not the same size. That can be normal.

But a recent change in one breast can matter.

Watch for:

• One breast is becoming larger,
• One breast is becoming swollen,
• One breast is changing shape
• One breast feels heavier,
• One breast looks different from usual

Take photos if it helps you track the change, but do not delay medical care.

10. Breast Pain

Breast pain is common. It can happen from hormones, periods, cysts, injury, infection, bra fit, or muscle strain.

Most breast pain is not cancer.

But breast pain should be checked if it is:

• New
• One-sided
• Persistent
• Linked with a lump
• Linked with skin change
• Linked with nipple discharge
• Linked with swelling or warmth

Inflammatory Breast Cancer: The Signs People Miss

Inflammatory breast cancer is rare, but it can grow and spread quickly.

It may not start as a clear lump.

It may look like:

• Breast swelling
• Red, pink, purple, or darker skin
• A breast that feels warm
• A breast that feels heavy
• Breast pain
• Itching
• Skin that looks like orange peel
• Thickened breast skin
• A nipple that flattens or turns inward
• Swollen lymph nodes under the arm
• Swollen lymph nodes near the collarbone

Because it can look like an infection, some people may first be given antibiotics. If symptoms do not improve quickly, follow up. Do not let it drift.

“How I Knew I Had Inflammatory Breast Cancer”: Lessons Without Copying a Story

Many people with inflammatory breast cancer say they first noticed a sudden change.

Common early clues may include:

• One breast suddenly looked bigger
• The skin looked red, bruised, or darker
• The breast felt hot
• The breast felt heavy
• There was no clear lump
• The skin looked like orange peel
• The breast felt painful or itchy
• The nipple looked flatter or pulled in
• Symptoms did not improve like a normal infection

The key lesson is simple: sudden breast skin change should be checked fast.

Do not wait for a lump. Do not wait for pain. Do not wait for all signs.

Breast Cancer Symptoms in Men

Men can get breast cancer, too. It is less common, but it happens.

Potential signs in men include:

• A lump under or near the nipple
• Nipple discharge
• Nipple turning inward
• Nipple rash
• Breast skin dimpling
• Breast swelling
• Armpit lump
• Breast pain in some cases

Men should not ignore breast changes. A new lump or nipple change needs medical review.

Can breast cancer have no symptoms?

Yes. Some breast cancers cause no symptoms at first.

They may be found on a screening mammogram before a lump can be felt.

This is why screening can matter. Screening guidance depends on your age, country, risk level, and health history.

Ask your healthcare professional what screening schedule is right for you.

What Causes Breast Cancer?

Breast cancer starts when breast cells change and grow out of control.

Doctors do not always know why it happens to one person. But some risk factors can raise the chance.

Breast Cancer Risk Factors

Risk factors include things you can change and things you cannot fully change.

Risk Factors You Cannot Fully Change

• Being female
• Getting older
• Family history of breast cancer
• Inherited gene changes, such as BRCA1 or BRCA2
• Past breast cancer
• Dense breast tissue
• Early periods
• Late menopause
• Past chest radiation

Risk Factors You May Change

• Alcohol use
• Excess weight after menopause
• Low physical activity
• Some hormone therapy after menopause
• Smoking
• Poor sleep and lifestyle patterns

Having a risk factor does not mean you will get breast cancer. Having no risk factors does not mean risk is zero.

Family History and Genetic Risk

Some families have a higher risk because of inherited gene changes.

Ask about genetic counselling if you have:

• Several relatives with breast cancer
• Breast cancer at a young age in the family
• Ovarian cancer in the family
• Male breast cancer in the family
• Pancreatic cancer or prostate cancer patterns in the family
• A known BRCA1 or BRCA2 gene change in the family

Genetic testing is not for everyone. A professional can help you decide.

How breast cancer is diagnosed

Doctors use exams and tests to find out what is happening.

Tests may include:

• Clinical breast exam
• Mammogram
• Breast ultrasound
• Breast MRI in selected cases
• Biopsy
• Hormone receptor testing
• HER2 testing
• Genetic testing in selected cases
• CT, bone scan, or PET scan if spread is suspected

A biopsy is the primary way to confirm cancer. It means a small tissue sample is tested.

For test education, visit our Medical Tests & Screenings Hub and Health Screening 101.

What do doctors check after diagnosis?

If breast cancer is found, doctors need more details.

They may check:

• Cancer type
• Tumor size
• Grade
• Stage
• Whether lymph nodes are involved
• Estrogen receptor status
• Progesterone receptor status
• HER2 status
• Genetic risk
• Whether cancer has spread

These details help guide treatment.

Breast Cancer Stages in Simple Words

Stage helps explain how far cancer has grown or spread.

• Stage 0: Very early cancer cells are inside the ducts or lobules.
• Stage 1: Small cancer, often still local.
• Stage 2: Larger cancer or nearby lymph nodes may be involved.
• Stage 3: More nearby spread, but not distant organs.
• Stage 4: Cancer has spread to distant parts of the body.

The stage does not tell the entire story. Cancer biology also matters.

Breast Cancer Treatment Tips: What Works Best?

There is no single treatment for everyone.

Treatment depends on:

• The cancer type
• The stage
• The grade
• Hormone receptor status
• HER2 status
• Gene test results in some cases
• Your age
• Your general health
• Your pregnancy status
• Your personal goals

Treatment may include surgery, radiation therapy, chemotherapy, hormone therapy, targeted therapy, immunotherapy, or a mix.

Surgery

Surgery removes the cancer from the breast.

Common surgery options include:

• Lumpectomy: Removes the cancer and some nearby tissue.
• Mastectomy: Removes the whole breast.
• Sentinel lymph node biopsy: Checks the first lymph nodes cancer may spread to.
• Axillary lymph node surgery: Removes more lymph nodes if needed.
• Breast reconstruction: Rebuilds breast shape after surgery if wanted and suitable.

Ask your surgeon what each option means for your cancer, body, and recovery.

Radiation Therapy

Radiation uses high-energy beams to kill cancer cells.

It may be used after lumpectomy. It may also be used after mastectomy in some cases.

Radiation can lower the chance of cancer coming back in the treated area.

Chemotherapy

Chemotherapy uses medicines to kill cancer cells or slow their growth.

It may be used:

• Before surgery to shrink the cancer
• After surgery to lower the recurrence risk
• For cancer that has spread
• For some aggressive breast cancer types

Side effects depend on the medicine used. Many side effects can be managed.

Hormone Therapy

Some breast cancers grow with hormones such as estrogen or progesterone.

Hormone therapy can block hormones or lower hormone levels.

It may be used for hormone receptor-positive breast cancer.

Examples may include tablets or injections, depending on the case.

Targeted Therapy

Targeted therapy attacks certain cancer cell features.

HER2-targeted therapy may help if the cancer is HER2-positive.

Other targeted medicines may be used in selected cases, based on cancer type, stage, gene changes, and past treatment.

Immunotherapy

Immunotherapy helps the immune system attack cancer.

It is not used for every breast cancer. It may be used for some triple-negative breast cancers or other selected cases.

Your cancer team can explain if it fits your cancer.

Treatment for Inflammatory Breast Cancer

Inflammatory breast cancer is often treated with more than one type of treatment.

Treatment may include:

• Chemotherapy first
• Targeted therapy if HER2-positive
• Surgery after medical treatment
• Radiation after surgery
• Hormone therapy if hormone receptor-positive
• Immunotherapy in selected cases

Because inflammatory breast cancer can grow fast, quick diagnosis and treatment are important.

Treatment Side Effects and Support

Breast cancer treatment can cause side effects. Tell your team early. Do not suffer in silence.

Possible side effects include:

• Tiredness
• Nausea
• Hair loss
• Skin changes
• Pain
• Swelling in the arm, called lymphedema
• Menopause symptoms
• Low mood
• Sleep problems
• Fertility concerns
• Nerve symptoms
• Heart effects with some medicines

Support may include medicines, physical therapy, nutrition help, mental health support, fertility counselling, and follow-up care.

Breast Cancer Treatment Tips for Daily Life

These tips do not replace treatment. They support care.

• Write down symptoms and questions.
• Bring someone to visit if possible.
• Ask what each test means.
• Ask the goal of each treatment.
• Tell your team about side effects early.
• Eat enough protein and calories.
• Drink fluids if safe for you.
• Move gently when your team says it is safe.
• Rest when needed.
• Ask for help with transport, meals, and chores.
• Protect your skin during radiation if advised.
• Ask about lymphedema prevention.
• Ask about fertility before treatment if it matters to you.
• Ask about emotional support.

Can breast cancer be prevented?

Not all breast cancer can be prevented. But some risks can be lowered.

Helpful steps include:

• Limit alcohol
• Do not smoke
• Move your body often
• Keep a healthy weight if needed
• Eat more whole foods
• Sleep well
• Know your family history
• Ask about screening
• Ask about genetic risk if family history is strong
• Use hormone therapy only as advised

For prevention support, read Cancer Prevention: Practical Steps That Support Lower Risk and Healthy Lifestyle Roadmap: 14 Practical Tips for Better Health.

Breast Self-Awareness: Know Your Normal

You do not need to do a perfect self-exam. But you should know what is normal for your body.

Look and feel for changes:

• In the shower
• While dressing
• In front of a mirror
• When lying down?
• At the same time each month, if you have periods

Check the whole breast area, armpit, and collarbone area.

Report changes that are new, one-sided, or lasting.

Screening Mammograms

A mammogram is an X-ray of the breast.

It can find some breast cancers before symptoms start.

Screening rules vary by country and risk level. Some people start earlier because of family history or genetic risk.

Ask your healthcare professional:

• When should I start screening?
• How often should I have a mammogram?
• Do I need extra screening because of dense breasts?
• Do I need genetic counselling?
• Do I need an MRI screening?

What Not to Do

• Do not ignore a new breast lump.
• Do not ignore breast skin dimpling.
• Do not ignore bloody nipple discharge.
• Do not ignore a nipple that suddenly turns inward.
• Do not ignore breast swelling or warmth.
• Do not assume inflammatory breast cancer always presents as a lump.
• Do not keep treating a breast rash for months without review.
• Do not replace cancer treatment with herbs or detox plans.
• Do not stop medicine without medical advice.
• Do not skip follow-up after abnormal imaging.

Questions to Ask Your Doctor

• Could this breast change be cancer?
• Do I need a mammogram?
• Do I need an ultrasound?
• Do I need a biopsy?
• Could this be inflammatory breast cancer?
• What type of breast cancer is it?
• What stage is it?
• Is it hormone receptor-positive?
• Is it HER2-positive?
• Do I need genetic testing?
• What are my treatment options?
• Do I need surgery?
• Do I need radiation?
• Do I need chemotherapy?
• Do I need hormone therapy?
• Do I need targeted therapy or immunotherapy?
• What side effects should I expect?
• Can I get a second opinion?

Simple 7-Day Breast Health Action Plan

This is not a diagnosis plan. It is a safety plan.

Day 1: Know Your Normal

Look at your breasts in the mirror. Notice your normal shape, skin, and nipples.

Day 2: Check for Lumps

Feel the breast, armpit, and collarbone area. Do not press too hard.

Day 3: Look for Skin Changes

Check for dimpling, thick skin, orange-peel skin, rash, redness, or colour change.

Day 4: Notice nipple changes

Look for new nipple inversion, discharge, crusting, or rash.

Day 5: Review Family History

Write down breast, ovarian, pancreatic, and prostate cancer in close relatives.

Day 6: Check Screening

Ask if you are due for a mammogram or extra screening.

Day 7: Book Care for Any Change

If something is new or not normal for you, book a medical visit.

FAQ

What are the first signs of breast cancer?

First signs may include a new breast lump, armpit lump, breast swelling, skin dimpling, nipple changes, nipple discharge, breast pain, redness, or a change in breast size or shape.

Can breast cancer happen without a lump?

Yes. Breast cancer can happen without a clear lump. Some people notice skin changes, nipple changes, swelling, pain, discharge, or no symptoms at all.

What does inflammatory breast cancer look like?

Inflammatory breast cancer may cause sudden breast swelling, redness or darker skin, warmth, heaviness, pain, itching, thick skin, orange-peel skin, nipple flattening, or swollen lymph nodes.

Is breast pain a cancer symptom?

Breast pain is common and is often not cancer. But pain should be checked if it is new, one-sided, persistent, or linked with a lump, swelling, nipple discharge, or skin change.

What nipple changes can be a warning sign?

Warning signs include a nipple that turns inward, nipple discharge with blood, nipple rash, crusting, scaling, or a nipple that looks different from normal.

How is breast cancer diagnosed?

Diagnosis may include a breast exam, mammogram, ultrasound, MRI in selected cases, and biopsy. A biopsy confirms whether cancer cells are present.

How is breast cancer treated?

Treatment may include surgery, radiation therapy, chemotherapy, hormone therapy, targeted therapy, immunotherapy, or a combination. The plan depends on cancer type and stage.

Can breast cancer be prevented?

Not all cases can be prevented. Risk may be lowered by limiting alcohol, staying active, keeping a healthy weight if needed, not smoking, knowing family history, and following screening advice.

Can men get breast cancer?

Yes. Men can get breast cancer. Symptoms may include a lump near the nipple, nipple discharge, nipple inversion, nipple rash, skin dimpling, or armpit swelling.

When should I see a doctor?

See a doctor for any new breast lump, armpit lump, skin dimpling, swelling, redness, nipple discharge, nipple inversion, nipple rash, or breast change that does not go away.

Related Reading

• Cancer Awareness & Prevention Hub
• Women’s Health Hub
• Men’s Health Hub
• Medical Tests & Screenings Hub
• Health Hub
• Cancer Prevention: Practical Steps That Support Lower Risk
• Health Screening 101: Simple Guide to Medical Tests
• Pancreatic Cancer: Symptoms, Causes, Treatment, and Early Warning Signs
• Lung Cancer Symptoms NHS: Expert Insights and Advice
• Secondary Liver Cancer: Symptoms, Causes, Treatment, and What It Means
• How I Knew I Had Colon Cancer: Warning Signs to Know
• Healthy Lifestyle Roadmap: 14 Practical Tips for Better Health

Key Takeaway

Breast cancer symptoms can include a lump, swelling, skin dimpling, nipple changes, discharge, breast pain, redness, warmth, and changes in size or shape.

Inflammatory breast cancer can appear quickly. It may cause swelling, warmth, redness or darker skin, orange-peel skin, itching, pain, and nipple changes. It may not start with a lump.

Most breast changes are not cancer. But new or lasting changes should be checked.

Treatment depends on the cancer type and stage. It may include surgery, radiation, chemotherapy, hormone therapy, targeted therapy, immunotherapy, and supportive care.

Know your normal. Follow screening advice. Ask for medical care when something changes.

 

Sources

• NHS — Symptoms of Breast Cancer in Women
• NHS — Breast Cancer in Women
• National Cancer Institute — Breast Cancer Treatment
• National Cancer Institute — Breast Cancer Treatment PDQ
• American Cancer Society — Breast Cancer Signs and Symptoms
• American Cancer Society — Inflammatory Breast Cancer
• American Cancer Society — Treatment of Inflammatory Breast Cancer
• Cancer Research UK — Inflammatory Breast Cancer
• Mayo Clinic — Breast Cancer Symptoms and Causes
• Mayo Clinic — Breast Cancer Diagnosis and Treatment