Silent reflux (LPR): the reflux you can't feel

Throat-clearing, a nagging cough, a lump in your throat - and not a hint of heartburn.

July 3, 2026

Months of clearing your throat. A dry cough that won't quite go away. The strange, persistent feeling of a lump in your throat. A voice that turns hoarse for no clear reason. The sense of mucus or post-nasal drip that no allergy treatment seems to touch.

You may have been told it's allergies, a lingering cold, or "post-nasal drip." But there's a common explanation that ties all of those symptoms together - and almost nobody recognises it, because it never does the one thing reflux is supposed to do. It never burns.

It's called silent reflux, or laryngopharyngeal reflux (LPR), and it's one of the most under-recognised food-related conditions there is.

What silent reflux actually is

You probably know acid reflux as a lower-chest problem: stomach acid escaping up into the oesophagus, causing heartburn.

Silent reflux goes further. In laryngopharyngeal reflux, stomach contents travel all the way up past the oesophagus to the pharynx and larynx - your throat and voice box.¹ The target tissue isn't your lower chest. It's the delicate lining of your upper airway.

That single difference - where the reflux lands - changes everything about how it feels and how it's recognised.

Why it's "silent"

Here's the crux. Most people with LPR do not get heartburn at all.²

In classic GERD, refluxed acid lingers in the lower oesophagus long enough to produce that familiar burn. In LPR, the reflux tends to travel up and back down quickly, without dwelling - so it never triggers heartburn, even as it reaches and irritates the throat. The body's usual alarm bell for reflux simply never rings.

That's why it's called silent: not because there are no symptoms, but because the symptom you'd expect - the one that would make you, or a doctor, think "reflux" - is missing.

The symptoms people don't connect to reflux

LPR's symptoms show up in the throat and voice, which is exactly why they get attributed to almost anything else. Commonly:¹

Frequent throat clearing
A chronic, dry cough
Hoarseness or a tired, changeable voice
The sensation of a lump in the throat (known as globus)
A feeling of post-nasal drip, or mucus in the throat
A recurrent sore or raw throat
Difficulty swallowing

Notice the absence on that list: heartburn.

The pepsin problem: why a little reflux does a lot of damage up here

This is the part that makes LPR genuinely insightful to understand.

Your oesophagus has some defences against reflux. Your larynx has almost none - it was never built to meet stomach contents. So it takes far less reflux to cause trouble up there.

And it isn't only acid. Stomach juice also contains pepsin, an enzyme that digests protein. Pepsin can be carried up with reflux and deposited on the laryngeal tissue, where it can damage that delicate lining.³ Because pepsin is produced only in the stomach, finding it in saliva is itself a marker that reflux has reached the throat.³ It also helps explain why LPR involves more "mixed" and non-acid reflux than classic GERD² - the damage isn't purely an acid story.

Silent reflux vs. classic reflux

	Classic reflux (GERD)	Silent reflux (LPR)
Where it reaches	Lower oesophagus	Throat and voice box
Heartburn?	Yes - the main symptom	Usually none
Main symptoms	Burning, regurgitation	Throat-clearing, cough, hoarseness, globus
Often mistaken for	-	Allergies, sinus problems, a cold

GERD and LPR can overlap, and some people have both.⁴ But when the symptoms are all in the throat and there's no burn, LPR is the pattern to know about.

Why it gets missed for years

Put the pieces together and the long delay makes sense. The symptoms point at the throat, so people go to the ENT clinic, the allergy specialist, the GP - and get treated for sinus issues, allergies or a stubborn cough. Reflux isn't suspected, because the heartburn that would suggest it isn't there.

I cleared my throat for two years and assumed it was allergies. It never once occurred to me it was reflux - I'd never had heartburn in my life.

The food and timing connection

Here's the practical good news: LPR is reflux, so it answers to the same levers as reflux generally. Larger meals, fatty and fried foods, alcohol, caffeine, acidic foods, and eating close to lying down all make reflux - and therefore silent reflux - more likely.

That means LPR is trackable. The throat symptoms may feel disconnected from the kitchen, but if you log what you eat, how much, and when, the connection tends to surface: the hoarse mornings after late, heavy dinners; the throat-clearing days that follow certain foods.

Finding your pattern

Because the symptoms are easy to misattribute, tracking is what makes the link visible. The things worth logging:

Throat symptoms - clearing, cough, hoarseness, the lump sensation - rated each day.
Meals - what, how much, and crucially when relative to lying down.
The classic reflux foods - fatty, fried, acidic, caffeine, alcohol.
The context - because reflux is multifactorial, and stress and sleep play in.

Across a few weeks, a vague "my throat is always bad" becomes a clear pattern - and one you can act on. Recovery here looks like quieter mornings and a voice that holds up; tracking is how you find the few changes that get you there.

Where Triggerbites fits in

Triggerbites is built to connect symptoms to meals - even when the symptom is in your throat and the cause is on your plate the night before.

You log meals and how you felt in plain language, and it extracts the ingredients, flags the reflux-relevant ones, and correlates them with your symptoms across time windows - including the overnight gap that LPR so often hides in. Instead of guessing between "allergies" and "a cold," you get a documented pattern.

Log like you're texting - plain language, not database searches

Automatic ingredient breakdown - we parse your entries into the basic components so you don't have to

Built-in chemical tagging - FODMAP, histamine, salicylates, oxalates ++ more compounds flagged automatically

Multi-window pattern recognition - correlations across same-day, next-day, and multi-day windows

Reports you can share - something to take to a doctor or dietitian

It takes seconds a day, and the trend it builds over time is a clear, concrete thing to share with a doctor.

For the underlying mechanism, see acid reflux after eating: causes and triggers.

Live, love, log. 🧡

References

1
Cleveland Clinic "Laryngopharyngeal Reflux (LPR)"Cleveland Clinic
2
StatPearls, NCBI Bookshelf "Laryngopharyngeal Reflux"NCBI Bookshelf
3
U.S. National Library of Medicine (PMC) "Laryngopharyngeal Reflux: Symptoms, Signs, and Presence of Pepsin in Saliva", 2021PMC
4
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) "Acid Reflux (GER & GERD) in Adults"NIDDK