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

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Stain after moch

27 April, 2005


My Hefsek Taharah was clean (after a few attempts) but I found a brown stain after performing the moch dachuk for about 30 minutes. Do I have to start over again with a new Hefsek Taharah tomorrow?


If you found a small stain on your white underwear, check to see if it is smaller than a gris. A stain of any shape, whose area is less than that of a US dime or an Israeli shekel (a circle 19mm in diameter, or about 2.8 square cm), does not invalidate your clean days.

If you're not sure of the area (e.g. it not perfectly round), or you found the brown spot on the moch itself or on a bedikah cloth, then the stain has to be shown to a rabbi in order to determine whether it invalidates your clean days. If it does, then you must do a new hefsek and start counting over again.  

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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