Body Mass Index (BMI). Body Mass Index (BMI) is measure of body fat based on height and weight that applies to both adult men and women. BMI does not differentiate between body fat and muscle mass. Therefore, body builders and people who have a lot of muscle bulk will have a high BMI but are not overweight or obese.
The bump: or hematoma as we call it, can last for 1-2 weeks. Sometimes it gets slightly worse before it gets better. If the child is acting normally, and not vomiting uncontrollably, she should be fine. If she starts doing those things, call your pediatrician.
When to get emergency help after a bump on the head. Loss of consciousness: If your child isn't breathing, have someone call 911 while you administer infant cardiopulmonary resuscitation (CPR) (if your child is younger than 12 months) or cardiopulmonary resuscitation (CPR) (if your child is 12 months or older) until help arrives.