Irregular heart rhythms are most often caused by premature beats or extra beats. In reality, the heart doesn't skip a beat. Instead an extra beat comes sooner than normal. This is followed by a pause that causes the next beat to be more forceful. The person feels this more-forceful beat.
Premature beats are very common in normal children and teenagers.
Most people have them at some time. Usually no cause can be found and no special treatment is needed. The premature beats may disappear, and even if they continue, your child will stay well and won't need any restrictions. Occasionally premature beats may be caused by disease or injury to the heart. Your child's doctor may recommend more tests to make sure your child's heart is ok.