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Pharyngocutaneous fistula after laryngectomy: the leak explained | CION Cancer Clinics
A pharyngocutaneous fistula is a leak between the throat and the skin of the neck, so saliva or drink comes out through the wound. It is the most common complication after a total laryngectomy and usually appears in the first couple of weeks. Most close with tube feeding and daily dressings; some need a further operation. This page explains why it happens, what needs same-day care, and what to ask. 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
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The short answer
What is a pharyngocutaneous fistula?
A pharyngocutaneous fistula is a leak. It is a small opening between the throat (the pharynx) and the skin of the neck, so that saliva or swallowed liquid comes out through the wound instead of going down to the stomach. It is the most common complication after a total laryngectomy, and it usually shows up in the first couple of weeks, often just as you were expecting to start eating again.
Why a leak can happen at all
When the voice box is removed, the surgeon closes the throat with a line of stitches so it becomes a tube again. That closure has to heal while saliva runs over it every minute of the day. If any part of the line heals slowly, saliva finds the gap, tracks through the tissue, and reaches the skin. That track is the fistula.
What you or your family will notice
Usually the neck wound looks red and swollen first, then a cloudy or frothy fluid appears at the skin, sometimes with a bad smell. If you have started drinking, you may see what you swallowed appear at the neck. A fever is common. Some leaks are found on a swallow X-ray before anything is visible at all.
A fistula is a healing problem, not a sign that the cancer is still there.
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What needs the team the same day
Fluid or food appearing at the neck wound, new redness or swelling spreading across the neck, a fever, or a wound that starts to smell. Any bleeding from the neck or into the stoma, even a small amount that stops on its own, needs the surgical team that day, because a leak can weaken the large blood vessels nearby. Go back to the centre where you were operated rather than a local clinic.
Not sure whether this applies to you?
Ask an oncologistRisk, not blame
Why some people leak and others do not
None of these are things you did wrong. Most were decided long before the operation.
Radiotherapy before surgery
Tissue that has already been treated with radiation heals more slowly and has a poorer blood supply. Many laryngectomies are done after radiotherapy has been tried, so this is the biggest single reason.
Poor nourishment
Weeks of trouble swallowing before the operation leave many people underweight and low in protein. Healing tissue is built from protein. This is why the dietitian is so insistent before surgery.
Also slows healing
- Uncontrolled diabetes
- A low thyroid level after treatment
- Continued smoking or tobacco
How much throat had to go
If the cancer had spread into the throat wall, more tissue is removed and the closure is under more tension, or a flap of skin and muscle from elsewhere is brought in. Larger repairs leak more often.
Infection in the wound
Saliva carries bacteria. Any infection along the stitch line eats into healing tissue and can open a gap. This is why antibiotics are given around the operation and why a smelly wound is reported at once.
What happens next
How a fistula is treated, in order
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Nothing by mouth
Eating and drinking stop so that saliva is the only thing passing the leak. All nourishment goes through the feeding tube. This is the hardest part for most families, and it is what lets the leak close.
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Dressings and drainage
The wound is opened enough to let fluid out and is packed and dressed, usually every day. Saliva draining onto a dressing rather than collecting inside the neck protects the tissue around it.
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Antibiotics and nutrition
Antibiotics treat the infection that is nearly always present. The dietitian increases the feed, particularly protein, because the body cannot close the gap without it. Blood sugar and thyroid levels are checked and corrected.
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Waiting for it to close on its own
Most small leaks close by themselves with this care. It takes weeks rather than days, and the discharge becomes clearer and less as it heals.
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Surgery if it does not close
A leak that is large, or that is still open after weeks of dressings, is repaired with an operation, usually by bringing in a flap of muscle and skin from the chest or forearm to cover the gap.
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A swallow test before eating
Before you drink again, a dye X-ray checks that nothing escapes. You then start with water, then thick liquids, then soft food, under the speech therapist.
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On your discharge summary
Words you will see, in plain language
- Pharynx
- The throat, the muscular tube that carries food from the mouth to the food pipe. After laryngectomy it is closed into a tube again.
- Fistula
- Any abnormal track between two surfaces. Here, between the throat and the skin of the neck.
- Contrast swallow
- An X-ray taken while you swallow a dye. It shows whether the dye stays inside the throat or escapes through a gap.
- Flap
- A piece of skin and muscle, with its own blood supply, moved from the chest or forearm to cover a gap the throat cannot close by itself.
- Nil by mouth
- Nothing to eat or drink, including water. All feeding goes through the tube until the swallow test is clear.
Commonly believed
Four things families tell us, and what is actually true
"A leak means the operation failed."
It means a stitch line healed slowly, which is a known risk of this operation and is more common after radiotherapy. Whether the cancer was fully removed is a separate question answered by the pathology report, not by the wound.
"If I eat carefully, a little at a time, it will be fine."
Every swallow pushes food and bacteria into the gap and keeps it open. Stopping all food and drink by mouth is what allows it to close. The tube feeding is temporary, and eating carefully is not a substitute for it.
"He will be on the tube for ever now."
The tube stays until the leak has closed and a swallow test is clear. For most people that is weeks, not for ever. The tube comes out once you are managing enough by mouth.
"The cancer must have come back."
A leak in the first weeks after surgery is a healing problem. Cancer coming back this early is very unusual. If the team is concerned, they will say so and arrange a scan or a biopsy. A fistula alone does not raise that question.
Being straight with you
What this page cannot tell you, and what to ask
This page cannot tell you whether your own leak will close without an operation, or how long it will take. That depends on how big it is, whether the tissue was irradiated, how well nourished you are, and whether infection is under control. Your surgeon sees all of that. We do not.
Who is more likely to need a second operation
People whose throat was closed under tension, who had a large area of tissue removed, or whose leak is wide and still pouring after several weeks of good wound care. None of this is certain in advance, which is why the team waits and watches before deciding.
Questions worth asking at the bedside
Ask how big the leak looks and whether it is getting smaller. Ask what the plan is if it has not closed in a set time, so that a second operation does not come as a shock. Ask whether the feeding is enough, because a person who is losing weight is not healing. And ask who to call at night, with a name and a number, because leaks do not keep office hours.
If you are at home with a leak and something changes, call the centre where the surgery was done first.Questions we are asked
Common questions about a fistula after laryngectomy
How long does a pharyngocutaneous fistula take to heal?
Small leaks with good wound care usually close in a few weeks. Larger ones, or ones in tissue that has had radiotherapy, can take longer or need an operation to close them. Your surgeon will give you a rough expectation after the first days.
Is a fistula dangerous?
Most are a setback rather than a danger, as long as they are drained and you are fed through the tube. The serious concern is if saliva sits against the large blood vessels in the neck for a long time. That is why any bleeding from the neck or stoma is treated as an emergency and why the wound is kept open and dressed.
Can he go home with a fistula?
Often, once the leak is settling, the tube feeding is running well and someone at home has been taught the dressing. You will need to come back for wound checks. If the leak is large or there is any bleeding concern, the team will keep him in.
Why is he not allowed even water?
Because water runs through the gap just as food does, and each swallow washes bacteria into the wound. Mouth care with swabs is usually fine. Ask the nurse what is allowed, because it varies with where the leak is.
Will he still be able to speak with a voice prosthesis?
Usually yes, once the leak has healed. The prosthesis may be fitted later than planned, or the puncture delayed, so that the throat heals first. A fistula does not by itself rule out any of the three ways of speaking.
Does the leak mean he needs more radiotherapy or chemo?
No. The fistula is a healing problem and has no bearing on whether further cancer treatment is needed. That decision comes from the pathology report. What a leak can do is delay the start of any planned radiotherapy until the wound has closed.
What does the dressing at home involve?
Cleaning the wound, packing it with the gauze you were given, and covering it, usually once a day or when it soaks through. The nurse will teach the person doing it before discharge. Bring photos of the wound to each visit.
Can a fistula come back after it has closed?
It is uncommon once a swallow test is clear and you are eating normally. If discharge or swelling reappears at the old site months later, it needs a review, because the causes are different at that stage and the team will want to look inside the throat.
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Sources
- Cancer Research UK — Surgery for laryngeal cancer
- Macmillan Cancer Support — Laryngectomy
- National Cancer Institute — Laryngeal cancer treatment (PDQ), patient version
- NHS — Laryngeal (larynx) cancer: treatment
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
Swallowing and eating after laryngectomyWhat the return to eating looks like once the leak has closedWhat changes in your body after laryngectomyThe new anatomy the leak sits inComplications and red flags after cancer surgeryThe wider list of things that need the team the same dayWound, stitches and scarsDressing a wound at homeFollow-up after laryngectomyWhen the wound checks fit into the wider plan
Talk to us
Worried about a neck wound after laryngectomy?
Call the helpline or send us a photo and the discharge summary. A surgical oncologist will tell you whether it needs to be seen today. One helpline serves every CION centre.