Newborn hiccups alarm more first-time parents than almost any other completely normal infant behavior. A brand-new baby hiccuping vigorously and repeatedly, sometimes for 10 or 20 minutes at a stretch, looks uncomfortable and worrying to parents who aren't expecting it. The reality is almost entirely reassuring: newborn hiccups are normal, common, cause babies minimal discomfort, and resolve on their own. Here's everything you need to know.
Why Do Newborns Hiccup So Much?
Hiccups are caused by involuntary spasms of the diaphragm — the large dome-shaped muscle that sits below the lungs and controls breathing. When the diaphragm contracts suddenly and involuntarily, it causes a rapid intake of breath that's immediately interrupted by the closing of the vocal cords — producing the characteristic "hic" sound.
Newborns hiccup more frequently than older children and adults for several well-understood reasons:
- Immature nervous system: The neural regulation of the diaphragm is still developing. The signals that control diaphragm movement are less precise and more easily triggered in newborns than in older individuals.
- Frequent feeding: Swallowing air during feeding is a primary trigger. A stomach that fills rapidly or contains air bubbles can press against the diaphragm and trigger spasm.
- Rapid stomach filling: When a baby feeds quickly — particularly from a bottle with fast flow — the stomach expands rapidly and presses on the diaphragm.
- Temperature changes: Sudden changes in stomach temperature (swallowing cold milk, then warm air) can trigger diaphragm spasm.
- Developmental function: Emerging research suggests that hiccups in newborns may serve a developmental purpose — activating the breathing control centers of the brain as part of normal respiratory development. This may be why hiccups are most frequent in the very young.
When Do Newborn Hiccups Start?
Babies hiccup in the womb — many parents feel their unborn baby hiccupping during pregnancy, and ultrasound studies confirm fetal hiccupping from as early as 6 weeks gestation. So newborn hiccups are not new at birth; babies arrive already experienced hiccuppers. After birth, hiccups are typically most frequent in the first weeks and months and gradually decrease as the nervous system matures.
Are Hiccups Uncomfortable for Babies?
This is the question parents most want answered. The evidence and clinical consensus: newborn hiccups are generally not uncomfortable for babies. Unlike adults, who find sustained hiccups irritating and occasionally painful, babies show little sign of distress during hiccup episodes. A baby who is contentedly feeding, sleeping, or playing through a hiccup episode is not being bothered by it.
The exception: if a baby is crying during a hiccup episode, the crying is almost certainly from a separate cause (hunger, gas, overstimulation) that happened to coincide with the hiccups.
What Triggers Hiccups and How to Reduce Frequency
While you can't eliminate newborn hiccups, reducing the most common triggers helps:
- Slow the feed: For bottle-fed babies, use a slow-flow nipple appropriate for age. For breastfed babies with overactive letdown, a laid-back feeding position (biological nurturing) can slow milk flow. Feeding too fast is one of the most consistent triggers.
- Burp more frequently: Swallowed air pressing on the diaphragm is a primary trigger. Burping every 1–2 oz for bottle-fed babies, or at natural pauses for breastfed babies, reduces gas accumulation. See our complete guide on how to burp a baby.
- Feed before extremely hungry: A very hungry baby feeds more frantically, swallows more air, and fills the stomach more rapidly. Catching hunger cues early means a calmer feed with less air swallowing.
- Keep baby upright after feeds: Holding baby in a more upright position for 15–20 minutes after feeding reduces the pressure of a full stomach on the diaphragm.
How to Stop Baby Hiccups
Honestly: the most reliable way to stop newborn hiccups is to wait. They almost always resolve on their own within 10–15 minutes. If you'd like to try something:
- Offer a feed or pacifier: Sucking and swallowing can reset the diaphragm rhythm and interrupt a hiccup episode. This is the most commonly effective method for newborns.
- Gentle back rubbing: Holding baby upright and gently rubbing the back can sometimes help, possibly by encouraging a burp that releases diaphragm pressure.
- Change baby's position: Moving from lying down to upright, or vice versa, can sometimes interrupt the hiccup rhythm.
What not to do: scare the baby (ineffective in adults; harmful in infants), give water (not appropriate for newborns), press on fontanelle (dangerous), or use gripe water for hiccups (no evidence; many formulations contain sugar).
When Hiccups Might Warrant a Pediatric Check
In the vast majority of cases, newborn hiccups require no medical attention. The following warrant a conversation with your pediatrician:
- Hiccups that last more than 1–2 hours without interruption
- Hiccups that appear to cause significant distress (sustained crying, inability to feed)
- Hiccups accompanied by repeated arching, apparent pain after feeds, or consistent regurgitation — these could suggest reflux
- Hiccups that persist beyond 12 months as a frequent daily occurrence
Frequent hiccupping in an older baby alongside feeding difficulties and crying after meals is worth discussing with your pediatrician as a possible reflux symptom. For context on what's normal in newborn development, see our baby milestones by week guide and our newborn feeding schedule.