Nishmat's Women’s Health and HalachaIn memory of Chaya Mirel bat R' Avraham

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Bleeding from medication, post-oophorectomy

11 March, 2018


I am 69 years old and had a prophylactic oophorectomy about 4 years ago due to a history of breast cancer 30 years ago and being BRCA1 positive. For the past 29 years post chemotherapy, I have been on either prempro or prednisone and provera.

Recently I have been traveling a lot and have not been taking my medication as regularly as I should. As a result I had vaginal bleeding last week for 5 days with sloughing off of the uterine lining. The flow has not been heavy enough to require a pad.

Since I have not been ovulating for many years and have no ovaries, am I considered a nida? A similar but lighter episode occurred a few years ago and I was told that I was not.

Thank you.


It is possible to become niddah from uterine breakthrough bleeding caused by taking hormonal medication irregularly, despite having had an oophorectomy.

However, if the bleeding was light enough that you didn't need a pad, then it is considered staining and is subject to the leniencies of ketamim. Thus, stains found on colored underwear or on disposable pantyliners may be disregarded. Stains found on toilet paper may be disregarded as long as 15 seconds elapsed after urinating before wiping. Stains found on your skin or on white garments depend on the color and size of the stains. See our articles on stains and toilet paper for more details and get back to us if you are still unsure of your status.

If the bleeding continues we recommend consulting with your physician.


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