Having had a case themselves the authors report a rare complication of epidural anaesthetic, namely pneumocephaly. When it occurs it is usually after a difficult puncture; and usually thought of if headaches are unusually severe of there is a picture of intracranial rise in pressure. Then a tomodensitometry will lead to the diagnosis. Literature shows that it can be a serious condition, sometimes fatal, which means that the case has to be followed up very carefully and tomodensitometry has to be repeated until complete cure has been obtained.