Medical Oncologist
CION Cancer Clinics
Transoral surgery: operating through the mouth | CION Cancer Clinics
Transoral surgery means the surgeon reaches a throat or voice box tumour through your open mouth, using a laser or a robot, with no cut on the neck or face. It suits small tumours the surgeon can see in full. This page explains how it is done, which cancers it is used for, who it does not suit, and what to ask your team before deciding. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MM
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
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
The short answer
What does "transoral surgery" actually mean?
Transoral surgery means the surgeon reaches the tumour through your open mouth, with no cut on the neck or face. It is used for some cancers of the throat, the voice box and the back of the tongue, and it is one option among several, not the automatic choice.
Why the route matters
The throat sits behind the jaw and under the skull. For decades the only way to reach a tumour there was to open the neck, and sometimes to split the jawbone. Working through the mouth avoids that outer wound. The tumour is still removed in full, with a rim of healthy tissue around it. Only the way in is different.
Two tools do the work
Most transoral operations use either a laser fitted to a microscope, or a surgical robot whose thin arms and camera bend around the corners of the throat. The surgeon controls both. The tool does not decide anything on its own. Which one is used depends on where the tumour sits and what the centre has.
This page explains the approach in general. Whether it suits your tumour is a decision your treating team makes after looking at your scans and examining your throat.Where it is used
Which head and neck cancers are treated this way?
The common ground is a tumour that is small enough to see in full through the mouth, in a place the instruments can reach.
Voice box (larynx)
Early cancers on a vocal cord are the most common reason for laser surgery through the mouth. Part or all of the affected cord is removed under a microscope. Many people go home the next day.
Usually with
- Laser microsurgery
- A short hospital stay
Tonsil and base of tongue
This area, called the oropharynx, is where the robot is most useful. Its camera looks around the bend at the back of the tongue, which a straight instrument cannot do. HPV-related tonsil cancers are often treated here.
Usually with
- Robotic surgery (TORS)
- Neck lymph node removal in the same sitting
Where it does not suit
Large tumours, tumours that have grown into the jawbone or the cartilage of the voice box, and tumours the surgeon cannot see in full through the mouth. A stiff jaw or a small mouth opening can also rule it out. Open surgery or radiotherapy is then the right plan.
Not sure whether this applies to you?
Ask an oncologistOn the day
What happens during a transoral operation?
You are fully asleep
A general anaesthetic is always used. The anaesthetist passes a thin breathing tube into the windpipe, or sometimes uses a special tube that keeps the throat clear for the surgeon. You feel and remember nothing.
The mouth is held open
A metal frame gently keeps the mouth open and the tongue out of the way. This is why the lips, tongue and teeth can feel sore afterwards, and why a loose tooth or a stiff jaw is checked before the day.
The tumour is removed
Using the laser or the robot, the surgeon takes the tumour out with a rim of healthy tissue. Small pieces from the edges are often sent to the laboratory during the operation, so the surgeon knows before finishing whether more needs to come out.
Waking up
Most people wake in the recovery area with a sore throat and a husky voice. Whether you eat that evening, and whether a feeding tube is placed through the nose for a few days, depends on how much tissue was removed and where.
On your report
Words you will see on the operation note
- TORS
- Transoral robotic surgery. The surgeon sits at a console and moves the robot's arms inside your throat. The robot never acts on its own.
- TLM
- Transoral laser microsurgery. A laser beam, aimed through a microscope, cuts the tumour out. Mostly used on the voice box.
- Margin
- The rim of normal tissue around what was removed. A clear margin means no cancer cells were found at the edge. A close or involved margin may mean a second procedure or radiotherapy.
- Frozen section
- A quick laboratory check of tissue while you are still asleep. It guides the surgeon on the day. The final report takes longer and is the one that counts.
- Neck dissection
- Removal of lymph nodes (small glands that filter fluid from the throat) through a cut on the neck. Often done alongside transoral surgery for tonsil and tongue-base cancers, because the nodes cannot be reached through the mouth.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
!
One thing that cannot wait after transoral surgery
Bleeding from the mouth or throat after you have gone home is the one complication that needs the same-day attention of the team that operated. Even a small amount of fresh red blood in the spit, or blood coming up with a cough, should be reported at once. Sit up, lean forward, do not lie flat, and call the helpline or go to the nearest emergency department. Do not wait to see whether it stops on its own, and do not travel a long distance without telling the team first.
Commonly believed
Three things families ask, and what is actually true
"No cut on the neck means it is a minor procedure."
The wound is inside, where you cannot see it, and it is a real cancer operation. The throat is sore for days to weeks, eating can be slow, and the rules about rest and follow-up are the same as for any other operation. The outer scar is what changes, not the seriousness.
"If it can be done through the mouth, there will be no radiotherapy."
Sometimes that is true, and it is one reason the approach is chosen. But if the final report shows cancer close to the edge, or in several neck nodes, radiotherapy or chemotherapy may still be advised afterwards. Nobody can promise otherwise before the report is back.
"Every big hospital does this now."
Laser microsurgery of the voice box is widely available in India. Robotic transoral surgery needs a specific machine and a surgeon trained on it, and is offered at fewer centres. Ask how many of these operations the surgeon does in a year. It is a fair question.
Being straight with you
What this page cannot tell you
It cannot tell you whether your tumour can be removed through the mouth. That depends on the exact position, the size on the scan, how wide the mouth opens and what the surgeon sees on examination. It cannot tell you what will happen afterwards, because that depends on the final laboratory report.
What to ask your team
Ask whether transoral surgery is an option for you at all, and if not, why not. Ask what the alternatives are, usually open surgery or radiotherapy, and what each would mean for your voice, your swallowing and your time in hospital. Ask whether the neck nodes will be treated in the same operation. Ask what happens if the margins are not clear.
What to bring to that appointment
Bring the biopsy report, every scan, and the list of medicines you take, including blood thinners. Bring the family member who will be with you afterwards. If your first language is Telugu and the consultation is in English, say so.
Tell the surgeon and the anaesthetist about any loose teeth, dentures, jaw stiffness or previous neck radiotherapy. Each one changes how the mouth can be opened safely.Questions we are asked
Common questions about transoral surgery
Will there be any scar on my father's face or neck?
Not from the transoral part. Everything is done through the open mouth. If the lymph nodes in the neck also need removing, that is done through a cut on the neck in the same sitting, and that leaves a line along a skin crease. Ask the surgeon beforehand whether a neck dissection is planned.
How long will he be in hospital?
It depends on what is removed. A small vocal cord operation is often an overnight stay. A larger tonsil or tongue-base operation with neck node removal is usually several days, until swallowing is safe and the bleeding risk has passed. Your surgeon will give you a likely range for your own case.
Will he be able to eat normally afterwards?
Most people are back to a normal diet in time, but the first days to weeks can be slow, with soft food, small mouthfuls and sometimes a temporary tube through the nose. A speech and swallowing therapist will usually see you before you go home. Tell the team early if food is going down the wrong way or causing coughing.
Is it safer than open surgery?
For suitable tumours it avoids the outer wound and usually means a shorter stay. It has its own risks, mainly bleeding and swelling in the throat. For a tumour that is too large or too deep, open surgery is the safer operation, and a good surgeon will say so.
Will radiotherapy still be needed afterwards?
Sometimes. The decision is made after the final laboratory report, which shows whether the margins are clear and how many neck nodes, if any, contained cancer. If the report is favourable, surgery alone may be enough. If not, radiotherapy, sometimes with chemotherapy, is discussed at the tumour board.
Does CION do this operation?
What we can do straight away is read your reports and tell you whether a transoral approach is worth asking about, and which questions to put to any centre. The equipment and the surgeon's experience vary between hospitals. Call the helpline and a surgical oncologist will talk it through with you before you commit to anything.
Is it covered by Aarogyasri or insurance?
Cancer surgery is generally covered under Aarogyasri, CGHS, ECHS, EHS and most cashless insurance, but the specific procedure, the hospital's empanelment and any robotic charges can affect what is paid. Ask the hospital's insurance desk for a written estimate under your scheme before admission, not after.
What if the surgeon cannot remove it all through the mouth?
This is discussed before the operation, and you will be asked to consent to the possible change of plan. The surgeon may stop, let the throat settle and plan an open operation or radiotherapy instead. Occasionally the operation is converted to an open approach on the same day. Neither means something went wrong.
Meet the Specialists
17+ senior cancer specialists. One panel for your case.
Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
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
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
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- NHS — Laryngeal (larynx) cancer: treatment
- Cancer Research UK — Surgery for laryngeal cancer
- National Cancer Institute — Oropharyngeal Cancer Treatment (PDQ) - Patient Version
- American Cancer Society — Surgery for Oral Cavity and Oropharyngeal Cancer
- NICE — Cancer of the upper aerodigestive tract: assessment and management (NG36)
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
Transoral Robotic Surgery (TORS) ExplainedHow the robot is used and what it addsTransoral Laser Microsurgery for the LarynxThe laser route for voice box tumoursBleeding After Transoral SurgeryThe one complication that cannot waitDeciding on Cancer SurgeryHow a surgical decision is weighedAnaesthesia for Cancer SurgeryWhat the anaesthetist does before and during
Talk to us
Been told a throat or voice box tumour needs surgery?
Send us the biopsy and scan reports or call the helpline. A surgical oncologist will tell you whether a transoral approach is worth asking about and what to ask any centre. One helpline serves every CION centre.