Medical disclaimer: this page is for patient education. It does not replace a consultation with the doctor who knows your case. Your specific sedation plan depends on your history, scans, and what your treating team is trying to find out.
Is Bronchoscopy Painful? What You Will Actually Feel
Written by Dr. Kunal Waghray, MD DM DNB MNAMS EDRM, Interventional Pulmonologist, Respire Airway Clinics, Hyderabad. Last reviewed 13 May 2026.
So. Your doctor has told you that you need a bronchoscopy and the very first thing you did, after walking out of that appointment, was open a browser and type in some version of "is it going to hurt." That is how most people end up here. Usually within an hour of the news.
I'm Dr. Kunal Waghray. I'm an interventional pulmonologist in Hyderabad, and bronchoscopy is most of what I do. In a normal week I will perform this procedure for ten or twelve patients, and almost every one of them asks the same question before we begin.
Here is the short version, in one sentence, before anything else. Bronchoscopy is not a painful procedure for the vast majority of patients. You will feel pressure. You may briefly cough. You will not feel pain.
The Short Answer, Properly
Three things make this procedure tolerable. All three are running before the scope ever touches you.
Throat numbed with lignocaine spray
A 2% lignocaine spray goes onto the back of your tongue and into the throat. Within a minute the back of your throat feels heavy and slightly distant. The gag reflex is switched off before the scope arrives.
IV sedative in your bloodstream
Midazolam, sometimes with a small dose of fentanyl. You stay awake. You can still respond. But the next twenty minutes will mostly be missing from your memory afterwards, which is the point.
Airways have almost no pain nerves
The trachea and the smaller airways carry almost no pain fibres. Once the scope is past your vocal cords, your nervous system has very little to say about it. The lungs cannot feel a bronchoscope the way the back of your hand can feel a needle.
Pain Is Not the Same as Discomfort, and I Will Not Lie to You About That
A lot of medical websites tell you bronchoscopy is "completely painless" and stop there. That is not quite right and I would rather be straight with you.
Pain has a specific quality. It is sharp. It makes you wince. Discomfort is something else. Discomfort is pressure at the back of your throat. It is the brief urge to cough when the scope first crosses your vocal cords. It is the slightly strange awareness that something is in your airway, even though nothing about that something actually hurts.
You may feel discomfort during a bronchoscopy. You will probably not remember much of it. You should not feel pain.
What you may feel
- Pressure at the back of the throat
- Brief urge to cough
- Slight awareness of the scope in your airway
- A floating, dreamy calm from the sedation
What you will not feel
- Sharp or stinging pain
- The biopsy instrument (if one is used)
- Anything in the lower airways
- Most of the procedure (amnesia from midazolam)
What Happens, Minute by Minute, So Nothing Is a Surprise
You arrive fasting. We change you into a gown. A nurse checks your blood pressure, pulse, and oxygen saturation. A small IV cannula goes into the back of your hand. That part is a brief pinch and nothing more.
A 2% lignocaine spray goes onto the back of your tongue and into the throat. It tastes a little bitter. Within a minute or two the back of your throat feels heavy, slightly far away, the way it feels for an hour after a dental procedure.
Midazolam goes in through the cannula. You stay awake. You can still answer if I ask you something. But the next twenty minutes will mostly be missing from your memory afterwards, which is the whole point.
A thin flexible tube, roughly the width of a pencil, is passed through your nose or mouth, past your vocal cords, into the windpipe, and downwards. You are breathing on your own throughout, with oxygen running through a nasal prong.
A tiny instrument passes down the channel inside the scope. Brushing, washing, or a small biopsy fragment. The airway lining has almost no pain fibres. None of it is felt.
The scope comes out. You are moved to a recovery area and watched for thirty to sixty minutes. When you can sip water safely and you are properly awake, you go home.
The Sedation Plan, Said Out Loud
This is the part that actually decides what your experience will be. I use two layers for almost every diagnostic bronchoscopy.
Layer one is the topical anaesthetic. A 2% lignocaine spray for the throat, jelly in the nostril if I am going through the nose, and a small extra dose down through the scope if your cough reflex is being stubborn. That last bit is normal. It happens.
Layer two is conscious sedation through the IV. Midazolam does two useful things, which is why it has been the standard for decades. It calms anxiety, and it has an amnestic effect. Most patients do not remember the procedure, even though they were technically awake throughout.
An Indian context worth knowing: a 2017 survey of Indian bronchoscopists found that the majority were doing this procedure without any IV sedation at all, relying only on the throat spray. That is medically acceptable. It is also harder on the patient. At Respire, conscious sedation is the default for diagnostic bronchoscopy. If a centre is offering you a bronchoscopy, ask exactly what sedation is planned. The answer matters.
Will I Be Awake? Will I Remember Any of It?
Yes and no, in that order.
Yes you will be awake, in the technical sense that your eyes can open and you can squeeze a hand if asked. No, you will probably not remember it. This surprises people. They expect either general anaesthesia and total oblivion, or full awareness and a long vivid memory of a tube in their airway. The reality sits in between and feels much closer to "missing time" than to either extreme.
A pattern seen almost every clinic day
A patient opens their eyes in recovery, looks at the nurse, and asks when we are going to start. The procedure has already finished. They will not remember the conversation either. If you really would rather be fully unconscious, general anaesthesia is occasionally an option, more often for complex therapeutic procedures than for diagnostic ones. Most patients, once they understand what conscious sedation actually feels like in practice, choose it.
What People Actually Say Afterwards
“That was much easier than I had built it up to be.”
The most common response, by a long way. People walk in braced for the worst experience of their life. They walk out a couple of hours later mildly puzzled that it was so unremarkable.
“I remember a moment of pressure, and then waking up.”
A smaller number remember coughing during the procedure, which is the airway doing exactly what it is built to do. We add a touch more lignocaine through the scope when it happens, and the coughing settles.
“I remember nothing between the IV going in and the nurse handing me water.”
Not unusual. Almost nobody describes it as painful. That is true across thousands of procedures, not just the ones we perform at Respire.
What About After the Procedure?
Sore throat
The most common one. Feels like the early hours of a viral cold and usually settles within 24 hours. Warm fluids help.
Hoarse voice
You may sound a touch husky for half a day. Avoid straining your voice on the first evening.
Mild cough
A dry, on-and-off cough for a day or so. The lining is mildly inflamed from the procedure. It is annoying. It is not dangerous.
Streak of blood in sputum
If a biopsy was taken, you might see a thin streak of blood the next morning. Normal, and short-lived. Not the same as coughing up a mouthful of blood.
When Pain Actually Would Matter
Real pain after a bronchoscopy is uncommon. When it happens, it deserves attention rather than reassurance.
Call the clinic immediately if any of these appear within 48 hours
- Chest pain, especially with breathing
- Shortness of breath that is worse than your usual
- Bleeding that does not settle, or more than a small streak
- A fever above 38°C
- Severe or worsening throat pain rather than a mild ache
These are uncommon. Picking up the phone is always the right call.
Frequently Asked Questions
Is bronchoscopy painful?
For the great majority of patients, no. The throat is numbed with a lignocaine spray and a small dose of a sedative goes in through an IV. The airway itself has almost no pain nerves to begin with. Pressure and a brief cough, yes. Pain, no.
Are you awake during a bronchoscopy?
Technically yes, under conscious sedation. In practice, almost nobody remembers it. Midazolam, the most common sedative used, has an amnestic effect. You will breathe on your own throughout. No breathing tube is needed.
How long does a bronchoscopy take?
The bronchoscopy itself is usually fifteen to thirty minutes. You will be in the clinic for around three hours from arrival to discharge, with most of that being preparation and recovery.
Will I feel the biopsy if one is taken?
No. The lining of the airway does not carry pain fibres the way skin does, so the sampling itself is not felt. The most common sign is a small streak of blood in the sputum the next morning, which is normal and short-lived.
Can I have general anaesthesia instead of conscious sedation?
Sometimes, usually for complex therapeutic procedures rather than routine diagnostic ones. For most diagnostic bronchoscopies, conscious sedation is preferred. It is safer, the recovery is quicker, and patient comfort is genuinely good.
How soon can I eat after a bronchoscopy?
Around two hours, once the throat numbness has fully worn off. Sips of water first, soft food next. Very hot or spicy food is best avoided on the first evening.
Is bronchoscopy worse than an endoscopy?
Most patients who have had both say they were similar, and a fair number say the bronchoscopy was easier. The throat numbing and the sedation are nearly identical. Bronchoscopy patients sometimes report a bit more coughing; endoscopy patients sometimes report a bit more gagging.
How painful is bronchoscopy with a biopsy?
A biopsy does not add to the discomfort. The instrument is tiny, the airway lining cannot feel the sampling, and the whole thing takes seconds. A thin streak of blood in the sputum the next morning is common. Sharp pain afterwards is not expected and should be reported.
A Final Word, Plainly
If you have been told you need a bronchoscopy and you are still anxious about pain after reading all of the above, that is fine. Anxiety is not weakness. Most patients are nervous on the morning of the procedure, and that is a perfectly reasonable response.
The patients who do best are the ones who get their questions answered before the day. Knowing the plan reduces fear more reliably than reassurance does. Come and talk to us first.
Dr. Kunal Waghray sees patients at Respire Airway Clinics in Basheer Bagh and Jubilee Hills, Hyderabad.