Tips and Tricks

Upset stomach and colic

Many parents experience that their baby seems uncomfortable, has a tense stomach, and cries inconsolably – often at the end of the day.
They describe it as their baby having a stomachache.

Although it is very common in infants, it is often both physically and emotionally stressful for the entire family.

In this post, we take a closer look at what is behind this stomachache, when to call it colic, what is colic and 5 good tips to help your little one.

In collaboration with Q clinic.

February 11, 2026

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Hanna Tómasdóttir

Hanna Tómasdóttir

Indlægget er skrevet i samarbejde med Hanna Tómasdóttir medejer af Q Klinik, Autoriseret osteopat og fysioterapeut, Master i Positiv Psykologi, Master i Hovedpinesygdomme og MSc stud. på sidste semester i Women's Health.

Babies are born with immature digestive and nervous systems. In the first few months, the body must learn to:

  • Coordinate bowel movements
  • Dealing with flatulence and bowel movements
  • Regulate tension and find calm

This means that many babies experience stomach upset even when they are completely healthy. Stomach aches are therefore not necessarily a sign of illness, but often an expression that the infant's system is still developing.

When do we talk about colic?

When stomach pain and restlessness become more pronounced, it is often referred to as infant colic. Colic is defined as: Prolonged, repeated and unexplained crying in an otherwise healthy baby. Colic is typically seen in babies between 2 weeks and 4 months of age and is characterized by:

  • Crying, whining, or pronounced discomfort for more than 3 hours a day, at least 3 days a week for several weeks
  • Crying, whining, or pronounced discomfort constantly throughout the infant's waking hours over several days
  • Crying, whining, or pronounced discomfort starts for no immediate reason
  • Baby is inconsolable
  • It is often worse in the evening.
  • Baby has clenched hands and tense stomach
  • Pronounced bent, stretched legs, or kicking legs while crying

Colic is called a functional condition – not a disease – and usually goes away on its own over time.

<p> Immature digestion</p>

Immature digestion

The baby's gastrointestinal system is not yet fully developed. Bowel movements may be uncoordinated, and the baby may have difficulty handling air and stool in the early stages. This can cause tension, bloating and discomfort – even if digestion itself is normal and healthy.

<p>Må man træne mavemusklerne?</p>

Må man træne mavemusklerne?

Ja.


Tidligere har der været mange råd om, hvad kvinder med rectus diastase ikke måtte gøre. Sit-ups,
planker og andre øvelser, hvor mavemusklerne arbejder kraftigt, har ofte stået på listen over
øvelser, man skulle holde sig fra.


Den nyere forskning tegner et mere nuanceret billede.


Et systematisk review og meta-analyse fra 2025 med 34 randomiserede studier fandt, at
mavetræning kan reducere afstanden mellem mavemusklerne. Men forskerne understreger
samtidig, at sikkerheden i evidensen er meget lav.


Det betyder ikke, at alle skal lave de samme maveøvelser. Men det betyder, at mavemusklerne
ikke skal være et område, man er bange for at belaste
.

<p>Hele dine core skal arbejde</p>

Hele dine core skal arbejde

De senere års forskning peger også væk fra ideen om, at man blot skal finde én bestemt “dyb
mavemuskel” og træne den isoleret.


En nyere network meta-analyse peger på, at progressive træningsprogrammer, hvor både de dybe
og de mere overfladiske mavemuskler inddrages, ser ud til at være mere effektive til at reducere
afstanden mellem mavemusklerne end isoleret træning af enkelte muskler.


Det giver god fysiologisk mening. Bugvæggen arbejder ikke som enkeltstående muskler, men som
et samspil mellem blandt andet de lige, skrå og dybe mavemuskler, rygmuskulaturen, diafragma
(den store vejrtrækningsmuskel) og bækkenbunden.


Målet er derfor ikke kun at gøre mellemrummet mellem mavemusklerne mindre. Målet er at
genopbygge styrke, kontrol og evnen til at håndtere den belastning, som kroppen bliver udsat
for i hverdagen
– fra at komme ud af sengen og løfte sit barn til senere at kunne løbe, styrketræne
eller dyrke den aktivitet, man gerne vil vende tilbage til.

Kroppen skal også have tid

Det er samtidig vigtigt at huske, at kroppen restituerer naturligt efter en fødsel.


Bindevæv, muskler og bugvæg har været under gradvis forandring gennem ni måneders graviditet,
og kroppen er ikke færdig med at restituere otte uger efter fødslen.


Det er også en af udfordringerne ved forskningen. Når træning sættes i gang meget tidligt efter
fødslen, kan det være vanskeligt at afgøre, hvor stor en del af forandringen der skyldes træningen,
og hvor meget der skyldes kroppens naturlige restitution. Den nyere network meta-analyse
fremhæver endvidere, at evidensen om det optimale tidspunkt for at begynde behandling fortsat
er begrænset.

5 tips for when your baby has a stomach ache

1. Skin-to-skin

Close body contact, where the child is gently cradled in the parents' arms or skin-to-skin, can help the infant find physical calm when suffering from stomach upset. In skin-to-skin, the baby's body lies unclothed against one of the parents' naked upper bodies, so there is full skin contact. Remember to snuggle under a duvet or blanket so that the little one is not exposed to the cold. This helps the infant's nervous system find calm and can reduce both crying and stomach upset.

2. Gentle massage

Calm touch and gentle tummy massage can support bowel movements and reduce tension, there is a lot of good inspiration in this area, but remember to do it slowly, without pressure and see if your baby finds it comfortable. If you place your baby on your forearm so that your hand is on the baby's tummy, the gentle pressure and warmth from your hand can do wonders for a fussy tummy, with the other hand you can gently soothe by rocking the baby's bottom.

3. Probiotics (lactic acid bacteria)

Certain probiotic strains (lactic acid bacteria) can, in some infants, reduce crying time with colic. Lactobacillus reuteri is the name of one of the types that has shown good effect. There are many different products on the market for infants, just be aware that some babies react to the oil or additives that may be in the products, so good advice is to start slowly and change the product if you do not experience an effect. Use it as a cure when the bottle or can is empty, take a break and see if baby still needs it.

4. Be aware of milk protein

In some children, cow's milk protein via the mother's diet or infant formula may worsen symptoms. In consultation with a healthcare professional, it may be relevant to:

  • Remove all dairy products from the mother's diet for 2-4 weeks
  • Use highly hydrolyzed infant formula (Althéa, Nutramigen 1 & 2 and Pepticate)

If the baby is receiving breast milk and formula, it is important to remove milk products from the mother and use highly hydrolyzed formula. After the 2-4 weeks, you can try to reintroduce milk protein again.

5. Manual treatment

Gentle manual therapy, where the baby is treated with light pressure and calm techniques, can support the body's balance and reduce crying time. Treatment should always be carried out as baby-friendly and calmly as possible, with the parents close by. It will often consist of techniques that aim to:

  • Relax the diaphragm and stomach
  • Ensure optimal mobility in the back, neck and chest
  • Support the autonomic nervous system for increased calm and regulation

Several recent studies show that manual therapy can reduce crying time and at the same time reduce stress in parents, with no reported side effects.

<p> Just remember</p>

Just remember

You should always seek medical attention if your baby is crying a lot and showing symptoms of stomach pain.

Most babies don't have stomach aches because there's something wrong with them, but because their systems are still developing. It's not you, the parent, who's doing anything "wrong."

The vast majority of cases of infant colic and stomach aches go away spontaneously within the first 3-4 months, but it can feel like a long time when you are in the middle of it. Ask for help, because it is a time when you can feel stressed, alone and helpless, but with support, time and reassurance, it often becomes easier to be in. We hope that these 5 tips can help and support your family.