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

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Mikveh night on onat perishah

30 August, 2017


Because of a medication I’m taking, I have been getting my period every two weeks (or less). I just got my period on day 13 of my cycle, the day I was supposed to go to the mikvah. If I end up going to the mikvah in 13 days from now, which will also be an Ona, does the mikvah take precedence over that particular Ona?


When an onat perishah falls out at night, most authorities prohibit relations even on mikveh night.  There is debate about whether immersion itself is permitted for the purpose of other physical contact.  Our site’s rabbinic supervisor, Rav Yehuda Henkin, does permit immersion in such cases for physical contact, though not for relations.

In some extreme cases, Rav Henkin would permit relations after performing a bedikah. If your mikveh night does fall out on your veset, please write back with more details about your condition and how long you will need to continue with this medication.

If your last period began during the day, and you are observing the night as an onat perishah out of stringency, then you may immerse and even have relations on that night. In such a case, you should perform a bedikah prior to relations.

It may be that some modification to your medication could help you lengthen your cycles. If you have not yet done so, please bring this consideration to the attention of your physician.  For this purpose, you may find it helpful to refer your physician to the section of our website designed for healthcare professionals, Jewish Women’s Health, written to facilitate communication between women and their healthcare providers on niddah-related issues.

Please write back with any further questions.

This internet service does not preclude, override or replace the psak of any rabbinical authority. It is the responsibility of the questioner to inform us of any previous consultation or ruling. As even slight variation in circumstances may have Halachic consequences, views expressed concerning one case may not be applied to other, seemingly similar cases. All health and health-related information contained within Nishmat's Women's Health & Halacha Web site is intended to be general in nature and should not be used as a substitute for consulting with your health care professional. The advice is intended to offer a basis for individuals to discuss their medical condition with their health care provider but not individual advice. Although every effort is made to ensure that the material within Nishmat's Women's Health & Halacha Web site is accurate and timely, it is provided for the convenience of the Web site user but should not be considered official. Advice for actual medical practice should be obtained from a licensed health care professional.

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