In clinical practice it is common to see babies who have fallen and have swollen bags on the back of the head, usually in the form of a scalp hematoma. In this case, the scalp hematoma is not the main observation, and although it may look relatively dangerous on the outside, the intracranial changes in the condition are more important. If the baby has very severe nausea and vomiting as well as a comatose state where one limb will not move, he or she needs to go to the hospital immediately for the relevant examination, which is often a very dangerous manifestation associated with cerebral hemorrhage. If it’s just a simple swollen bag in the back of the head, no need to pay special attention to it, often it can be treated by a series of ways such as cold compresses, pressure bandages, puncture suction, etc., which lasts for about 1-2 weeks, so these are able to be treated. However, if the brain hemorrhage is not detected in time, there may be a life-threatening risk to the baby, so it is not necessary to pay special attention to the outside of the swollen bag situation, and it is more necessary to observe the relevant changes in the baby’s condition, so as to avoid delaying the discovery of the condition.