Sore throat in morning? US doctor reveals common triggers

Waking up with a sore throat can be unsettling, but it is usually caused by common, temporary conditions rather than a serious illness, according to US physician Dr Kunal Sood.

In an Instagram post shared on July 10, the anaesthesiology and interventional pain medicine specialist said a sore throat that appears suddenly is often linked to a handful of common triggers.

Early stages of an infection

Dr Sood said one of the most frequent causes is the beginning of a viral or mild bacterial infection.

"The throat can be the first place that gets irritated before you develop symptoms such as fever, congestion or a cough," he explained, adding that the scratchy sensation may serve as an early warning sign that the body's immune system is responding to an infection.

Postnasal drip and acid reflux

Another common culprit is postnasal drip, which occurs when mucus from the nose or sinuses trickles down the back of the throat, particularly overnight.

According to Dr Sood, this can leave the throat feeling irritated or sore first thing in the morning.

He also pointed to acid reflux, including so-called "silent reflux", as a possible cause.

"You don't need heartburn for reflux to affect you," he said, explaining that even small amounts of stomach acid or the digestive enzyme pepsin reaching the throat can inflame its tissues.

Dry air and other irritants

Environmental factors can also trigger a sore throat. Dr Sood said dry air, smoke, allergens, excessive voice use and other irritants may leave the throat feeling raw or tired by the end of the day.

When to seek medical advice

Dr Sood said most sore throats caused by these triggers improve once the underlying cause is addressed.

However, he advised seeking medical evaluation if symptoms persist, worsen or if the cause is unclear, as some conditions may require specific treatment.

Note to readers: This article is for informational purposes only and is not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.