After the surgery, bleeding that continues from endometrial tissue may render you niddah. If the bleeding can be shown to be from elsewhere, such as a lesion that is seen in the vaginal canal, then the spotting would not be a halachic concern.

We encourage you to take preventative measures to avoid becoming niddah from spotting. You should wear wear colored underwear and be careful to wait when wiping after urinating. See our article on stains for more details.

We wish you refuah shleimah.