Medical Oncologist
Breast cancer · Chemotherapy
Will I need chemotherapy for breast cancer?
Not everyone does, and that is the first thing worth knowing. Where it is needed, most of the fear comes from not knowing what a cycle feels like. So this page walks through one, day by day.
Ask whether you need it
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A breast cancer diagnosis does not automatically mean chemotherapy. Some cancers need it, some do not, and for a group in between there is now a test on the tumour itself that helps decide. Ask which of those three you are in before you assume anything.
Who actually needs chemotherapy
The single most useful question to ask, and the one families most often skip because they assume the answer.
Usually recommended whenFour situations where it is normally part of the plan
The cancer has reached the lymph nodesCells in the nodes under the arm mean treatment that works throughout the body, not only where the cancer was.
It is a faster-growing typeCertain types behave more aggressively, and chemotherapy is one of the few treatments that works well against them.
The cancer is largeSometimes given before surgery to shrink it, which can make a smaller operation possible.
It has spread furtherWhere the cancer has reached other organs, chemotherapy is used to control it rather than remove it.
Often not needed whenFour where it usually adds nothing, or too little
It is stage 0Cancer confined to the ducts and not invading the surrounding tissue is not treated with chemotherapy at all.
It is small, node-negative and hormone-drivenSurgery, radiation and a long-term tablet are often enough, with no benefit added by chemotherapy.
A genomic test says the benefit is lowA test on the tumour tissue itself can show that chemotherapy would add little. Worth asking whether you are a candidate.
The harm would outweigh the gainOther health conditions can make the side effects a bigger risk than the benefit. A legitimate reason, not giving up.
The genomic test is the part most people have never heard of. It reads a panel of genes in the tumour and estimates how much chemotherapy would actually add for you specifically. It is not offered in every situation and it is not free, but where it applies it can spare months of treatment. Ask directly: “Would a genomic test change your recommendation in my case?”
Before surgery, or after?
You will hear these called neoadjuvant and adjuvant. Both are normal. Which order you are offered says something about the plan, not about how bad things are.
Before surgery
Neoadjuvant chemotherapy
Given to shrink the cancer first. That can turn a mastectomy into a lumpectomy. It also lets the team see how the cancer responds while it is still there to measure, which they cannot learn any other way.
Families often read this order as a sign the cancer is too advanced to operate on. It usually means the opposite. How that affects the surgery choice →
After surgery
Adjuvant chemotherapy
Given once the cancer has been removed, to deal with any cells that may have travelled beyond the breast before the operation. Nothing shows on a scan at that point, which is exactly why it is given.
This is the harder one to accept. You feel well, the cancer is out, and you are being asked to take treatment that makes you feel worse.
What one cycle actually feels like
You will be told a number of cycles. Almost nobody explains what happens inside one. Most cycles run three weeks, and they follow a pattern you will come to recognise.
One cycle, typically 21 days
Then it repeats. Six cycles is roughly four to five months, not six weeks.
Days 1–2
Treatment day, and the day after
Several hours in a day-care chair with a drip. Many people feel fine that evening. Anti-sickness medicine is given before treatment, not after it starts.
Days 3–7
The heavy stretch
Tiredness, taste changes, a sore mouth, unsettled digestion. This is the part people mean when they talk about chemotherapy. It passes.
Days 8–14
Lowest resistance to infection
You will likely feel better while your blood counts are at their lowest. Crowds, unwell visitors and street food are worth avoiding now. A fever needs a phone call, not a wait.
Days 15–21
Recovery, and almost normal
Energy returns, appetite improves, counts climb back. Many people work, travel and attend functions in this window. Then the next cycle begins.
Why this matters: the pattern is predictable, which means it can be planned around. A wedding in week three of a cycle is usually manageable. The same wedding in week one is not. Tell your team the dates that matter and they will often shift a cycle to fit.
What actually happens on the day
The most feared appointment in the whole plan, and it is mostly sitting and waiting. Knowing the shape of it removes a surprising amount of the dread.
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Arrive and registerCome at the time given. The first visit takes longer than the rest. -
Blood test firstCounts are checked before anything is given. If they are too low, the cycle is delayed on purpose. -
A wait for the resultUsually under an hour. This is the part nobody warns you about, so bring something to do. -
The drip goes upA cannula in the arm, then treatment over a few hours. Anti-sickness medicine goes in first. -
Home the same dayAlmost nobody is admitted. You will usually walk out and go home to sleep.
Talk to our team
Have questions about breast cancer? Speak to a specialist.
Call the helpline or leave your details, and someone will help you arrange a consultation at the CION centre nearest you. One helpline serves every CION centre.
Call 1800 202 8726
Helpline open 24/7
Can I still…
The questions people are too embarrassed to ask in the consultation, because they sound trivial next to cancer. They are not trivial — they are your life.
Pick what you are worried about
What is realistic
Usually yes, with adjustments. Many people keep working through chemotherapy, especially in the second half of each cycle. Desk work is easier than physical work, and week three is easier than week one.
Worth doing: tell your employer what you need rather than what is wrong. Two or three predictable days off per cycle is easier to grant than an open-ended absence.
Best window in the cycleWeeks two and three. Many people take the treatment day and the two days after as planned leave, then work the rest of the cycle.
Your hair
Named plainly, because it is the thing most women ask about first and are then made to feel shallow for asking. It is not a small thing here, and pretending otherwise helps nobody.
What happens
It usually starts around the second or third week
Not all chemotherapy causes hair loss, and your oncologist can tell you whether yours is likely to. Where it does happen, it typically begins two to three weeks after the first cycle, often quite suddenly. For some people it includes eyebrows and eyelashes.
It grows back. Regrowth usually starts within a few weeks of finishing, and it often comes back a slightly different texture or colour at first. That settles.
What helps
Deciding in advance takes most of the sting out
Many women cut their hair short before it starts, or arrange a wig or scarves beforehand rather than in the middle of it. Having it be your decision rather than something that happens to you changes how it feels, and everyone who has done it says so.
Scalp cooling during treatment reduces loss for some people and is not available everywhere — ask whether it is an option here. And ask about our counselling support if the prospect is weighing on you. Wanting to feel like yourself is a legitimate part of getting through this.
In this part of the country, hair carries meaning that a treatment leaflet does not capture. If it is the reason you are hesitating about treatment, say that out loud to your oncologist rather than deciding alone.
Side effects, and what is actually done about them
Most are manageable, and most people do not realise how much can be managed. Pick one to see what is usually offered and when to call rather than wait.
Side effects
What is usually done
The most common and the most underestimated. It builds across cycles rather than staying level, so cycle five is often harder than cycle one even though nothing has gone wrong.
What helps: short walks rather than complete rest, which sounds wrong and is well established. Your team will check for anaemia, which is treatable and often the reason it is worse than expected.
How long it lastsBuilds through treatment and lifts over the months after it ends. Often the last effect to go.
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Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
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Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
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Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
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Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
Radiation Oncologist
Radiation Oncologist
Radiation Oncologist
Hematologist
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
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Talk to our team
Have questions about breast cancer? Speak to a specialist.
Call the helpline or leave your details, and someone will help you arrange a consultation at the CION centre nearest you. One helpline serves every CION centre.
Call 1800 202 8726
Helpline open 24/7