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Accidental bangs on the head are quite common. Fortunately the skull is a pretty tough part of the body and most people who bang their head suffer no more than a few hours of headache. But sometimes a head injury can be more serious, with internal damage to the brain, or a fracture of the skull. In more serious cases it is usually very obvious that medical help is needed, but often it can be difficult to decide.
Research in the UK has shown that a very important sign of possible skull fracture is vomiting.
Anyone who vomits after a head injury should seek medical advice, even if they seem perfectly well, conscious and fully alert.
