Medical Oncologist
CION Cancer Clinics
How pain is controlled in advanced colon cancer | CION Cancer Clinics
Most pain from advanced colon cancer can be brought under good control with the right medicines, taken at the right times. Pain is not something to bear quietly. It usually comes from the liver, the bowel, the lining of the belly, bones or nerves, and each kind responds to different treatment. This page explains where the pain comes from, how a pain plan is built, and when pain needs a hospital the same day. At CION Cancer Clinics, a multidisciplinary team plans colon cancer treatment for your stage, from surgery to chemotherapy and follow-up.
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Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed October 2026, next review due October 2027
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The short answer
Can pain from advanced colon cancer really be controlled?
For most people, yes. With the right medicines taken at the right times, pain can usually be eased enough to eat, sleep and move around the house. Not everyone with advanced colon cancer has pain at all, and pain that does come can change, so the plan changes with it.
Why people suffer more than they need to
Many patients do not mention pain because they do not want to trouble the doctor, or fear it means the cancer is winning. Families worry about morphine. Doses get missed at night, or the chemist has run out. Each of these is fixable once the team knows about it.
Pain relief runs alongside treatment
Controlling pain does not mean stopping chemotherapy or giving up. The CION supportive care team works next to the oncologist from the start, which is what palliative care alongside treatment means. Advanced does not always mean beyond treatment either. Some people whose cancer has spread only to the liver can have it removed, as explained in when liver metastases can be removed.
Pain is a symptom to report, like a fever. Nobody gains anything by bearing it quietly.Where it comes from
What causes pain in advanced colon cancer?
Different kinds of pain respond to different treatment, which is why the doctor asks so many questions about how it feels.
The liver stretching
Spots in the liver can stretch its outer covering. This gives a dull, heavy ache under the right ribs, sometimes felt in the right shoulder. Regular painkillers help, and a short course of steroids sometimes helps more.
The bowel and the belly lining
A narrowed bowel causes cramping pain that comes in waves. Cancer on the lining of the belly gives a more constant ache. Cramps with vomiting and no wind passing can mean a blockage, covered in bowel obstruction in advanced disease.
Bones
Spread to bone is less common in colon cancer, but it causes a deep, constant pain that is often worse at night or when standing. A short course of radiotherapy, arranged at a partner centre, often eases it well.
Nerves
Pain from a squeezed or damaged nerve burns, shoots or feels like an electric shock. Ordinary painkillers help it less, so different medicines are used.
Common causes
- Tumour pressing on nerves in the pelvis or back
- Numbness and tingling in the hands and feet after oxaliplatin
Not sure whether this applies to you?
Ask an oncologistHow it is done
How does the team build a pain plan?
Describing the pain
Where it is, what it feels like, what makes it worse and how it affects sleep. A score out of ten helps track it. Describe it in whatever words come naturally, in Telugu if that is easier.
Regular doses, by the clock
Pain that is there most of the day is treated with medicine taken at fixed times, not only when it hurts. Waiting for pain to return before the next dose means always catching up.
A rescue dose for flare-ups
An extra dose is kept for pain that breaks through between regular doses. If rescue doses are needed often, that is a signal to raise the regular dose, not to struggle on.
Preventing the side effects
Morphine-type medicines almost always cause constipation, so a laxative starts on the same day. Sleepiness and nausea in the first few days usually settle.
Adding other treatments
Steroids, nerve pain medicines, radiotherapy for bone pain and nerve blocks can all be added. Radiotherapy and nerve blocks are arranged at accredited partner hospitals. The plan is reviewed at every visit.
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Pain that needs a hospital today
Go to the nearest emergency department the same day for sudden, severe belly pain with vomiting and no stool or wind passing, which can mean the bowel is blocked. Go immediately for new back pain with weakness or numbness in the legs, or new trouble controlling the bladder or bowels. Pressure on the spinal cord cannot wait for morning. Belly pain with fever and a hard, tender belly also needs same-day care.
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Commonly believed
Four worries families have about pain medicine
"Morphine is only given when the end is near."
Morphine is used at any stage when pain needs it. Some people take it for long stretches while still on chemotherapy, and some come off it when the pain settles, for example after radiotherapy.
"He will become addicted."
Addiction is uncommon when morphine is used for cancer pain under a doctor's care. The body does get used to it, which is why doses are adjusted and why it should never be stopped suddenly. That is not addiction.
"Strong painkillers will shorten her life."
Pain medicine adjusted carefully by the team is not what shortens life. Pain left untreated stops people eating, sleeping and moving, and that does its own harm.
"Mentioning pain will make the doctor stop treatment."
Pain is information, not a test you can fail. New pain sometimes needs a scan, and reporting it early gives the team more choices, not fewer.
Being straight with you
What this page cannot tell you
It cannot tell you what dose to take, or whether to change one. Pain medicines are adjusted to one person's weight, kidneys, liver and other tablets, and a dose that suits one patient can harm another. Change doses only on the advice of the team that prescribed them.
It cannot tell you why the pain has changed
New or worsening pain can mean the cancer has changed. It can also mean constipation, wind, a stomach ulcer or a pulled muscle. Only an examination, and sometimes a scan, can tell the difference.
Who this does not apply to
This page is about pain from advanced cancer. It is not about wound pain in the weeks after an operation, which the surgical team manages. If you have belly pain and no cancer diagnosis, read abdominal pain and colon cancer instead, because most belly pain is not cancer.
If pain is stopping sleep tonight, call the helpline rather than waiting for the next appointment.Questions we are asked
Common questions about pain in advanced colon cancer
Will I have to take morphine?
Not necessarily. Many people start with paracetamol or a milder painkiller, and morphine-type medicines are added only when those are not enough. The choice depends on the kind of pain, your kidneys and liver, and what you have already tried.
Is oral morphine available in India?
Yes. Oral morphine is a legal prescription medicine in India, but not every chemist stocks it and supplies are tracked. Ask the team where to fill the prescription, and keep enough in hand that you never run out over a weekend or a festival.
What if the pain medicine makes him sleepy or confused?
Some sleepiness in the first few days is common and usually settles. New confusion, very slow breathing or difficulty waking him are not normal. Call the team or go to the emergency department the same day, because the dose may need lowering.
Can radiotherapy help with pain?
Yes, especially for pain from cancer in a bone. A short course, sometimes a single treatment, can ease pain over the following weeks. CION's oncologists decide whether it is worthwhile, and the treatment is given at an accredited partner centre.
Why is constipation such a problem with pain medicines?
Morphine-type medicines slow the bowel, so a laxative is started alongside them. In colon cancer, constipation can also be confused with a blockage. No stool or wind for a couple of days with vomiting or a swollen belly needs the hospital the same day.
Can we add painkillers bought from the chemist?
Ask first. Anti-inflammatory painkillers can upset the stomach, harm the kidneys and raise bleeding risk, especially with a low platelet count during chemotherapy. Paracetamol hides in many combination tablets, and doubling up can damage the liver.
What is a nerve block?
An injection that numbs the nerves carrying pain from the belly organs. It is done by a pain specialist at a partner hospital. It helps some people with deep upper belly pain and can allow other medicines to be reduced. It is not suitable for everyone.
Does needing more pain medicine mean the cancer is growing?
Not always. The body gets used to some medicines, and constipation or another illness can add pain. Sometimes it does mean the cancer has changed, so new or different pain should always be reported. A scan may help the team decide what to do next.
Your Specialists
Meet CION's colon cancer specialists. Bring your colonoscopy, scan or biopsy report.
Our surgical and medical oncologists plan colon cancer care together: which operation, whether chemotherapy is needed, and the follow-up that comes after.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
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Sources
- National Cancer Institute — Advanced Cancer
- National Cancer Institute — Palliative Care in Cancer
- American Cancer Society — Radiation Therapy for Colorectal Cancer
- Macmillan Cancer Support — Bowel cancer (including rectal cancer and colon cancer)
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Palliative care alongside treatmentThe team that manages pain, and why it starts earlyManaging bowel obstruction in advanced diseaseWhen cramping pain and vomiting mean a blockageColon cancer that has spread to the bonesBone pain and how radiotherapy helpsLiving well with stage 4 colon cancerEating, moving and planning around good days
Talk to us
Is pain stopping someone you love from eating or sleeping?
Tell us where the pain is, what has been tried and what the latest reports say. A CION oncologist and the supportive care team will review the plan with you and adjust it. One helpline serves every CION centre.