Baby hunger cues: early, active and late signs, and fullness

Babies show hunger in stages. Early cues are quiet: stirring, opening the mouth, moving the tongue, rooting and bringing hands to the mouth. If those are missed, babies get more restless and suck on their hands or lips. Crying comes last, and a crying baby often needs calming before they can feed well. Fullness looks like turning away, closing the mouth and relaxed hands.

Pregnancy, Birth and Baby says hunger cues are the same whether your baby is breastfed or bottle-fed, and that responding to them, rather than following a set schedule, helps make sure your baby gets enough milk. The WHO calls this responsive feeding: recognizing and responding to signs of hunger and fullness.

What are the early hunger cues in a newborn?

Early cues mean your baby is ready to feed. This is the easiest time to start, because your baby is calm enough to latch or take a bottle well.

Pregnancy, Birth and Baby lists early cues as opening the mouth, moving the tongue, becoming more alert and restless, rapid eye movements, bringing hands to the mouth, rooting (turning the head and opening the mouth when the side of the mouth is touched) and jerky arm or leg movements. The CDC's hunger and fullness signs add puckering, smacking or licking the lips, and clenched hands. The AAP also mentions sticking out the tongue and sucking on things.

Not every baby shows every cue. Pregnancy, Birth and Baby notes that cues vary with age, how hungry your baby is and their own feeding pattern, and that some babies show very few cues at all.

What do active hunger cues look like?

If early cues are missed, or your baby is very hungry, the signs get bigger. Pregnancy, Birth and Baby calls these mid-hunger cues: becoming more restless, making more frequent hand-to-mouth movements, and sucking on lips or hands.

This is still a good time to feed. If your baby is getting worked up, a few seconds of calming — holding them close, a gentle voice — can make the latch or the first sucks of the bottle easier.

Is crying always a sign of hunger?

Crying is a late hunger cue, and both the CDC and AAP say it's worth watching for earlier signs so you can feed while your baby is still calm. Pregnancy, Birth and Baby explains why: when a baby is crying, their tongue is raised, which makes it harder to attach to the breast, and they're more likely to be unsettled and refuse the feed.

If your baby is already crying:

1. Pick them up and calm them first — skin-to-skin contact, rocking or a quiet voice.
2. Once they're calmer, hold them in your usual feeding position.
3. For breastfeeding, try hand expressing a little milk onto their lips or gently stroking their mouth to trigger sucking.
4. Offer the breast or bottle again when you see rooting or mouth opening.

Crying doesn't always mean hunger, though. See the cues that aren't hunger below, and our soothing a crying baby guide for ways to settle.

How do I know when my baby is full?

Babies are usually good at knowing how much milk they need. Pregnancy, Birth and Baby lists fullness cues as turning the head away, spitting out the milk, becoming unsettled and clamping the mouth shut. The CDC adds closing the mouth and relaxed hands. After a good feed, the CDC's breastfeeding guide says babies should seem content and drowsy.

For bottle-fed babies, the AAP's formula schedule page says a baby who becomes fidgety or easily distracted is probably finished. A baby who drains the bottle but keeps smacking their lips may still be hungry. The CDC is clear that your baby doesn't have to finish the bottle, and the NHS bottle feeding advice says not to force more milk than your baby wants.

The AAP notes that babies who are overfed may not show fullness by pulling away, so pausing partway through a feed helps your baby notice when they've had enough.

Which cues aren't hunger?

Babies use the same few behaviors — crying, sucking, fussing — for many needs. Pregnancy, Birth and Baby lists other reasons a baby may cry, including being tired, needing to burp, being fed too fast or too slowly, being sick, or being uncomfortable. The AAP points out that babies also suck for comfort, not just hunger.

Things to check before (or alongside) offering milk:

• Wind: a pause to burp your baby can settle fussing mid-feed.
• Tiredness: after a long stretch awake, fussing may be about sleep rather than food.
• Comfort: some babies want to suck to settle. If you're worried about supply, Pregnancy, Birth and Baby suggests breastfeeding to soothe rather than using a pacifier.
• Discomfort: a wet diaper, too hot or cold, or tight clothing.
• Illness: a baby who seems unwell, won't feed or cries differently needs checking (see below).

If you're unsure, offering a feed is reasonable — especially for a breastfed baby or a newborn. Over a few weeks most parents learn their baby's pattern.

How do hunger cues change as babies grow?

Cues change as your baby develops. The CDC lists different signs for older babies and toddlers once they start eating solids.

Feeds also tend to get quicker. Pregnancy, Birth and Baby says a feed usually takes 20 to 30 minutes but can take up to 1 hour, and babies may take less time as they grow. For more on how often babies feed at each age, see our baby feeding schedule by age.

How do I feed responsively from the breast or bottle?

At the breast:

1. Offer a feed when you see early cues.
2. Let your baby feed for as long as they need on the first breast before offering the second.
3. Watch for slowing sucks and relaxed hands as signs they're finishing.
4. Expect some feeds to be close together — that's normal, especially in the evenings (see cluster feeding).

With a bottle:

1. Hold your baby semi-upright, as the NHS advises, and give them plenty of time.
2. Offer short breaks during the feed — the NHS notes babies may pause and sometimes need to burp. The paced bottle-feeding guide shows how to slow the flow.
3. Stop when your baby shows fullness, even if there's milk left.
4. Never prop a bottle or leave your baby alone with one. The NHS also suggests most feeds come from you, your partner or a main caregiver, which helps babies feel secure.

Sleepy newborns may need help to feed. The CDC says you may need to wake your baby in the early weeks, and the AAP's formula feeding guide advises waking your baby to offer a feed if they sleep longer than 4 to 5 hours in the first few weeks and miss feeds.

If you keep notes, jot down the time you first noticed cues, which cues you saw and how the feed went. After a few days, patterns often appear — such as a fussy evening or a baby who cues an hour after waking.

When should I get help?

Call 911 now if your baby is struggling to breathe, has blue, gray, pale or blotchy skin or lips, is floppy, difficult to wake or can't be woken, has a seizure, has a weak, high-pitched or continuous cry, or has had no wet diaper in 12 hours. The NHS guide to serious illness lists these as emergencies, along with a temperature of 38°C (100.4°F) or higher in a baby under 3 months.

Get medical advice today (call your pediatrician's after-hours nurse line or see a doctor) if your baby is not feeding or keeps refusing feeds, or is having fewer wet diapers than usual.

Talk to your midwife, doctor or pediatrician (or call La Leche League or a lactation consultant (IBCLC)) if you're not sure how to read your baby's cues, your baby is crying more than usual, feeds are often very long or very short, or you're worried they aren't getting enough milk.