A woman can become niddah even after menopause.

In your case, a first potential halachic issue is the size of the instruments used, since instruments of a certain size inserted into the uterus are presumed to bring on niddah status through dilation of the uterus. In the case of a standard D&C, the width of the instruments used are well under the 19mm measure used as a criterion by our site's halachic supervisor, Rav Yehuda Henkin. You should check with your doctor in advance to confirm the size of the instruments s/he will use.

A second halachic issue relates to the bleeding itself. In general, there is halachic debate about how to treat bleeding from a procedure such as you expect to have. The most lenient opinions would treat bleeding resulting from such a procedure as dam makkah, blood from a wound, which does not render a woman niddah. In most cases, however, rabbis rule stringently and do treat such bleeding as dam niddah and the woman as niddah. But in your case, given that you have been in menopause for so long, the lenient approach is appropriate.

To summarize: as long as the instruments used are, as expected, under 19mm in width, and as long as your bleeding is consistent with what typically results from the procedure, you will not be considered niddah following the procedure and the bleeding may be disregarded.

We hope your procedure goes smoothly. Please write back to us with any further questions.