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What is colic and what causes it?

About one in five of all infants suffer from colic. Colic is defined as repeated episodes of excessive and inconsolable crying in a newborn baby which otherwise appears to be perfectly healthyThis type of crying is also commonly referred to as persistent crying.
This type of crying can be upsetting and frustrating for a parent. Trying to comfort a baby who has been crying uncontrollably for hours is hard work. At times, you may feel like crying yourself but it's important to remember that you're not doing anything wrong and your baby isn't crying for any particular reason.
It's also important to bear in mind that this type of crying won't last forever and it will pass. It usually begins when a baby is between two and four weeks and is usually over by the time your baby is between your baby is three or four months old. It is actually quite common so even though it might feel like it, you are not alone. 

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