colic that worsens lying down

Overview

Colic is when a healthy baby cries intensely for long stretches, usually for no clear reason. Some babies seem to cry more when lying flat on their back. This may be because lying down can make gas or acid reflux more uncomfortable. Colic is not a disease and it is not caused by bad parenting.

Yes. About 1 in 5 babies experience colic. It is one of the most common reasons new parents contact their health visitor.

It affects young babies under 6 months. It may be more likely in babies born early or those exposed to cigarette smoke around the time of birth.

Symptoms

Common symptoms

• Crying for more than 3 hours a day, on more than 3 days a week
• Episodes often start suddenly and happen in the evening
• The baby may clench fists, arch the back, or pull knees to the belly
• Crying gets harder to settle when the baby lies flat, such as when put down for a nap
• The baby appears in pain even though they are otherwise well

Symptoms in children

• In babies and young children, the signs are the same. There is usually no fever or physical illness, and the baby grows well.

Symptoms in older adults

• Not applicable. Colic as described here is an infant condition.

Causes

Main causes

• The exact cause of colic is not fully understood. It may be related to an immature digestive system and gas.
• Stomach acid reflux can also cause pain when lying down, because stomach contents can come back up into the food pipe.
• Some babies simply become more sensitive to light, noise, or being tired, and crying becomes a way to let off steam.

Risk factors

• Being younger than 6 months
• Being born prematurely
• Exposure to smoke during pregnancy or around the baby
• A parent who has had acid reflux or allergies (possible but unproven)
• Maternal stress during pregnancy

When to see a doctor

See a doctor urgently if:

• Call your GP or health visitor on the same day if your baby has a fever, is not feeding, has fewer wet nappies, is not gaining weight, or if you feel you cannot cope.
• If you ever have thoughts of harming your baby, put the baby somewhere safe and call for help immediately.

Book a routine appointment if:

• Bring up colic at routine baby check-ups. Ask about feeding, comfort measures, and whether further review is needed.

Diagnosis

A doctor or health visitor will take a detailed history, examine your baby, and ask about their feeding, poo, and crying. They usually look for signs of other problems before deciding it is colic.

Tests that may be done

• Most little ones need no tests. If there are worrying features, the doctor may request a urine test, stool sample, blood tests, or an ultrasound to rule out other conditions.

What to expect at your appointment

You will be given practical reassurance and advice on how to comfort your baby. You may be asked to keep a diary of crying and feeding, and to return for follow-up if things do not improve.

Treatment

There is no instant cure for colic. Treatment focuses on supportive care, feeding positioning, and sometimes investigating hidden causes like reflux or allergy. Talk with your doctor before using any medication or herbal product.

Self-care at home

• Hold your baby upright for 20–30 minutes after each feed
• Burp your baby gently every few minutes during feeds
• Offer a soother (dummy) or allow finger sucking
• Use gentle rhythmic movement like rocking, swaying, or going for a pram ride
• Try a warm bath or a gentle tummy massage
• Swaddle your baby firmly (not too tight) and keep the room calm
• Take breaks — hand your baby to a trusted adult when you feel overwhelmed

Medical treatments

If your doctor suspects reflux or a milk protein allergy, they may suggest a trial of changing your baby's feed, such as a hypoallergenic formula or specific dietary changes if you are breastfeeding. They may also consider acid-reducing medication. Always follow your healthcare provider's advice and never give over-the-counter medicines without asking.

Living with this condition

There will be good days and tough days. Keep a routine, but be flexible. Remember that your baby is not doing this on purpose, and the crying will stop eventually. Sleep when you can and ask for help.

Lifestyle tips

• Create a calming bedtime routine for your baby
• Keep the environment low-stimulation during fussy times
• Use a baby carrier if it helps settle your baby
• Take regular walks outside with the buggy
• Look after your own mental health — see friends, eat well, rest

Diet and exercise

For the baby, feeding is about nutrition, not exercise. If you breastfeed, eating a balanced diet supports your milk supply. If you bottle feed, make sure you use the right technique to reduce swallowed air. For parents, a short walk with the buggy can help you both relax.

Mental health and emotional wellbeing

Caring for a crying baby can be mentally exhausting. It is normal to feel angry, helpless, or guilty. If you feel overwhelmed, place your baby safely in their cot and step into another room for a few minutes. Breathe. Call a friend, your partner, or a crisis helpline. You are not a bad parent for struggling.

Prevention

Colic cannot always be prevented, but good feeding and settling techniques may reduce some episodes. Keeping your baby away from second-hand smoke is also protective.

Complications

If left untreated

• Colic on its own does not cause long-term harm. However, if an underlying issue such as reflux or a food allergy goes unrecognised, it could lead to feeding difficulties or poor weight gain. This is why professional review is important.

Long-term outlook

The forecast is very positive. Most babies outgrow colic by 4–6 months, and there are no lasting effects on development or behaviour. With the right support, families can get through this difficult phase.

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