Is it dangerous to fall a big bag on your forehead?

The front forehead fell a big bag, usually due to local subcutaneous vascular rupture, resulting in tissue fluid and blood exudation, at this time or oneself did not appear dizziness, nausea and vomiting and other discomfort symptoms, generally not a problem. If the above symptoms occur, and accompanied by trance, pale and other symptoms, need to be alert to intracranial hemorrhage, it is recommended to seek medical examination in time.