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CION Cancer Clinics
Total or subtotal gastrectomy: how the choice is made | CION Cancer Clinics
A subtotal gastrectomy removes the lower part of the stomach and keeps the upper part. A total gastrectomy removes the whole stomach and joins the food pipe directly to the small bowel. Both remove the same lymph glands. Which one you are offered depends almost entirely on where the cancer sits and how it grows, not on age or preference. This page explains what the team weighs and how life differs after each. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- What is the difference between a total and a subtotal gastrectomy?
- Subtotal and total gastrectomy, compared
- Four things the surgeon looks at before deciding
- How the decision is actually reached, step by step
- How life differs after each operation
- Three things families ask for, and what is actually true
- Common questions about total and subtotal gastrectomy
The short answer
What is the difference between a total and a subtotal gastrectomy?
A subtotal gastrectomy removes the lower part of the stomach and keeps the upper part, so you still have a small stomach afterwards. A total gastrectomy removes the whole stomach and joins the food pipe straight to the small bowel. Both take the same lymph glands. The choice is made almost entirely by where the cancer sits.
Why the surgeon does not simply keep as much as possible
The surgeon needs a rim of healthy stomach wall between the cancer and the cut edge. If the cancer sits low down, near the exit of the stomach, that rim can be found while keeping the upper half. If it sits high up, near the food pipe, or has spread widely through the wall, there is no safe place to cut and the whole stomach has to go.
What does not decide it
Not the size of the hospital, not your age on its own, and not how much you are willing to pay. A total gastrectomy is not the "stronger" operation and a subtotal one is not a compromise. Each is the right operation for a different tumour. If your surgeon recommends one, the useful question is what about the tumour's position led to that choice.
This page explains the two operations. It cannot tell you which one you need. That comes from your own endoscopy and scans.Side by side
Subtotal and total gastrectomy, compared
Subtotal gastrectomy
Total gastrectomy
Lower part of the stomach removed, upper part kept
Whole stomach removed
Remaining stomach joined to the small bowel
Food pipe joined to the small bowel
Usual choice for cancers in the lower third
Usual choice for cancers in the upper stomach or spread through the wall
Some meal size is kept; portions still smaller than before
Small, frequent meals for life
Vitamin B12 injections often needed, checked by blood test
Vitamin B12 injections needed for life
Same lymph gland removal (D2)
Same lymph gland removal (D2)
What tips the choice
Four things the surgeon looks at before deciding
These are weighed together at the tumour board, not by one person alone.
Where the cancer sits
The stomach is described in thirds. A cancer in the lower third can usually be cleared with a subtotal operation. One in the upper third, or one that crosses into the food pipe, almost always needs a total gastrectomy.
How it grows
Some stomach cancers form a lump. Others spread as sheets of cells through the wall without a clear edge. Your biopsy report may call this "diffuse" or "signet ring" type. These often need the whole stomach removed even when they appear low down.
Whether a clear edge is possible
During the operation a sliver of the cut edge is sent to the laboratory while you are still asleep. If cancer cells are found at the edge, the surgeon removes more, and a planned subtotal operation can become a total one.
Ask beforehand whether this switch is possible in your case, so it is not a surprise afterwards.Your fitness and your other conditions
A total gastrectomy is a longer operation with a join that is harder to heal. In someone with weak lungs or heart, or heavy recent weight loss, the team may plan chemotherapy first or spend weeks building fitness before operating.
Not sure whether this applies to you?
Ask an oncologistThe pathway
How the decision is actually reached, step by step
The camera test and biopsy
Endoscopy shows exactly where the cancer sits and how far up or down it extends. The biopsy shows what type it is. Together these settle most of the decision.
The CT scan
Shows how deep the cancer has gone, whether glands look involved, and whether it has reached the liver or the lining of the belly. A PET-CT is sometimes added.
A look inside with a keyhole camera
Before a big operation, many centres do a short keyhole procedure to look for spread on the belly lining that scans miss. This changes the plan in a real share of people.
Tumour board and consent
Surgeons, oncologists and radiologists agree the plan together. You are then told which operation is intended, and whether it could change on the day.
Living with it
How life differs after each operation
After a subtotal gastrectomy most people settle back into something close to normal eating within months, with smaller portions. After a total gastrectomy the change is larger and lasts. Meals are small and frequent for life, weight loss in the first year is expected, and vitamin B12 must be given by injection because the part of the stomach that absorbs it is gone.
Who a subtotal operation does not suit
Anyone whose cancer cannot be cleared with a safe edge while keeping the upper stomach. Keeping a piece of stomach that still carries cancer cells is worse than having no stomach at all. That is why the surgeon will not agree to a smaller operation on request.
Who needs more care around a total operation
People who are already underweight, people with diabetes, and older people living alone. All can have the operation, but they need a dietitian involved before surgery, not after, and often a feeding tube placed during the operation so nutrition does not depend on the new join healing quickly.
Dumping, bile reflux and low haemoglobin can follow either operation. They are more common after a total gastrectomy, and all of them can be managed.Commonly believed
Three things families ask for, and what is actually true
"Take out the whole stomach to be safe."
Removing more stomach than the cancer needs does not lower the chance of it returning. It only adds a harder recovery and a lifetime of smaller meals. Where a subtotal operation clears the cancer with a good edge, it is the right operation, not the lesser one.
"Keep as much as you can, she is old."
Age alone does not decide the operation. The position and type of the cancer do. An older person with a high tumour still needs a total gastrectomy, and many recover well with the right preparation. What matters is fitness, not the number on the ID card.
"They changed the plan on the table, so something went wrong."
A planned subtotal operation sometimes becomes a total one because the cut edge was not clear under the microscope. That is the frozen-section check doing its job. It means the surgeon refused to leave cancer behind.
Did you know
Every case at CION is discussed at a tumour board, with surgical, medical and radiation oncologists in the same room, before the operation is chosen. The recommendation you receive is not one surgeon's opinion.
Questions we are asked
Common questions about total and subtotal gastrectomy
Is a total gastrectomy more dangerous than a subtotal one?
It is a longer operation, and the join between the food pipe and the bowel is harder to heal than the join after a subtotal operation. So the risk of a leak and the recovery time are both somewhat higher. Your surgeon can tell you what that means for you, based on your fitness and your centre's own results.
Can I ask for the smaller operation?
You can ask why the larger one is planned, and you should. But a subtotal operation is only offered where the cancer can be cleared with a safe edge. If it cannot, a smaller operation would leave cancer behind, and no surgeon will agree to that. A second opinion is reasonable if you are unsure.
Will I be able to eat normally after a subtotal gastrectomy?
Closer to normal than after a total operation. The remaining stomach stretches over months and most people return to three meals with a snack, in smaller portions. Some foods, especially sweet or very fatty ones, may cause dumping. A dietitian will help you work out what your stomach tolerates.
How do people eat with no stomach at all?
Food passes from the food pipe straight into the small bowel, which does most of the absorbing anyway. You eat small amounts, often, chewing well and separating drinks from meals. It takes months to learn. Vitamin B12 injections are needed for life because nothing is left to absorb it.
What is a proximal gastrectomy? My report mentions it.
It removes only the upper part of the stomach and keeps the lower part. It is used for some early cancers high in the stomach. It is not standard everywhere, because reflux afterwards can be troublesome. Ask your surgeon why it is being suggested for you and what the alternative would be.
Are the lymph glands removed the same way in both?
Yes. The glands along the stomach and its blood vessels are removed in both operations, to the same D2 extent. The number of glands found in the removed tissue is reported afterwards and is one of the things that fixes the stage. A gland count is not something you choose.
Does the type of cancer change which operation I get?
Yes. Cancers that spread as sheets through the wall, called diffuse or signet ring type on the biopsy report, do not have a clear edge. They usually need a total gastrectomy even when they appear low down. The same applies to people with an inherited CDH1 gene change.
Is either operation covered by Aarogyasri or insurance?
Both are, when part of an approved cancer treatment plan. Aarogyasri, CGHS, ECHS and EHS are accepted, and most cashless insurers are empanelled. What you pay yourself is often very different from the sticker figure. Call the helpline with your card details and we will check your cover.
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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)
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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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Sources
- Cancer Research UK — Surgery for stomach cancer
- Macmillan Cancer Support — Surgery for stomach cancer
- American Cancer Society — Surgery for Stomach Cancer
- National Cancer Institute — Gastric Cancer Treatment (PDQ) - Patient Version
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
Gastrectomy: What the Operation InvolvesWhat is removed and joined, step by stepHow Food Travels After the Stomach Is RemovedEating after a total gastrectomy, explainedVitamin B12 After Gastrectomy: Lifelong InjectionsWhy the injections are needed and how oftenDeciding on Cancer SurgeryQuestions to ask before you consentChoosing a Surgeon and a CentreHow to get a second opinion without offending anyone
Talk to us
Not sure which operation you are being offered, or why?
Send us your endoscopy, biopsy and scan reports or call the helpline. A surgical oncologist will explain what is planned and what the alternative would mean for you. One helpline serves every CION centre.