Hysteroscopy is a test when a narrow telescope is inserted through the vagina and cervix and into the womb cavity. the womb cavity is then gently distended (blown up) using gas or fluid so that all of the cavity can be clearly seen. Most procedures are performed without the need for anaesthetic: sometimes local anaesthetic is used in the cervix if the cervix has to be opened a little or if treatment inside the womb is necessary (if a polyp, septum or fibroid is to be removed). Crampy pains are not unusual but these should not be much worse than period type pains. Occasionally a general anaesthetic will be administered if the cervix is very tight or if longer treatments to the inside of the womb are being performed.