What Causes Hiccups and How to Get Rid of Them

Everyone has been there: you’re in the middle of dinner, a meeting, or a quiet moment, and suddenly your body takes over with that unmistakable “hic.” Hiccups are one of those universal human experiences that feel both absurd and oddly unstoppable. Most of the time they vanish on their own within a few minutes. But understanding what’s actually going on, and knowing a few reliable remedies, can make the next bout a little easier to manage.

What Causes Hiccups?

Hiccups are caused by an involuntary spasm of the diaphragm, the large dome-shaped muscle beneath your lungs that controls breathing. When the diaphragm contracts suddenly and unexpectedly, it causes a rapid intake of air. That air hits your vocal cords before they have a chance to open, which produces the characteristic “hic” sound.

Common triggers include eating too quickly, swallowing air, drinking carbonated beverages, or consuming alcohol. Sudden temperature changes in the stomach, like drinking something very cold after eating something hot, can also set them off. Excitement, stress, and even laughing hard are known culprits as well. In short, anything that irritates the diaphragm or the vagus nerve that runs alongside it can spark a hiccup episode.

For most people, hiccups resolve on their own within a few minutes, and most episodes last under 30 minutes. Occasionally they can last longer. Hiccups that persist for more than 48 hours are considered chronic and may be a sign of an underlying condition worth discussing with a doctor. Chronic hiccups are genuinely rare, affecting roughly 1 in 100,000 people, though they still send an estimated 4,000 Americans to the hospital each year.

Remedies That Actually Work

There is no shortage of folk remedies for hiccups, and nearly everyone has a favorite. While few have been rigorously studied in clinical trials, many are grounded in real physiology. The goal of most remedies is the same: to reset the rhythm of the diaphragm or stimulate the vagus nerve in a way that interrupts the hiccup reflex.

Controlled breathing. Holding your breath briefly increases carbon dioxide levels in the blood, which can calm the diaphragm and stop the spasms. A slow, steady inhale followed by holding for 10 seconds, then exhaling gradually, is one of the most commonly recommended approaches. Breathing into a paper bag works on a similar principle, though it should only be done for a short time.

Swallowing and pressure. Drinking a glass of water in slow, steady sips without pausing can stimulate the vagus nerve and break the cycle. Some people find that swallowing a small spoonful of sugar or a few drops of lemon juice produces a similar effect through sensory stimulation of the throat and esophagus.

The Valsalva maneuver. This technique involves closing your mouth, pinching your nose, and gently bearing down as if you were trying to exhale against resistance. It creates pressure changes in the chest and abdomen that can interrupt the hiccup reflex. This is also a technique used in certain cardiac situations, so it has real medical grounding.

Distraction and relaxation. Sometimes the simplest approaches are surprisingly effective. Focusing your attention elsewhere, taking slow deep breaths, or gently pulling on your tongue can help reset the nervous system. There is some evidence that the brain’s attention to the hiccup reflex can actually sustain it, so deliberate distraction is not as silly as it sounds.

When to Take Hiccups Seriously

In the vast majority of cases, hiccups are harmless and short-lived. But persistent hiccups that last more than 48 hours, or that return frequently, can occasionally signal something that deserves medical attention. In fact, research suggests that roughly 80% of persistent hiccup cases are linked to gastroesophageal reflux disease (GERD), making it the most common underlying cause. Central nervous system issues, metabolic imbalances, and certain medications can also be responsible. If home remedies are not providing relief and hiccups are disrupting your sleep or daily life, it is worth checking in with a healthcare provider.

At Surepoint Emergency Medical Centers, we know that not every health concern feels “emergency worthy,” but we’re here for the full spectrum of moments when your body does something unexpected. From the routine to the urgent, our team is ready to help you feel better, faster.

Sources

Cole, J. A., & Bhimji, S. S. (2023). Singultus. In StatPearls. National Center for Biotechnology Information. https://www.ncbi.nlm.nih.gov/books/NBK538225/

Wikipedia contributors. (2024). Hiccup. Wikipedia. https://en.wikipedia.org/wiki/Hiccup

UCLA Health. (2024). Prone to hiccups? Here’s what you need to know. https://www.uclahealth.org/news/article/prone-hiccups-heres-what-you-need-know

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