It is the examination of the inside of the womb using a fine telescope A small telescope is inserted through the vagina and cervix into the cavity of the womb. Generally this is done under general anesthesia. The surgeon then carefully inspects the lining of the womb; the images from a camera attached to the telescope are projected onto a TV screen so you can watch the pictures if you want.
It is likely that you will need a biopsy of the lining of the womb. This is performed by inserting a small sampler at the end of the procedure.