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

  • Hebrew
  • English
  • Espnaol
  • Francais
  • donate
Side Bar

Long periods & short cycles

12 August, 2009


Has there been any discussion with Poskim regarding shortening of the Shiva Nekiim for various physical or psychological issues? Are these days D’oraita or D’rabanan.

I’ve gone from a normal cycle to one that lasts 10 days. Adding 7 days for counting leaves not a whole lot of time with my husband. Sometimes it is a 24 to 26 day interval.


We are sorry to hear of your difficult situation.

While the requirement for keeping the seven clean days for a niddah is d’rabbanan, this enactment originated in the times of the Talmud and has the status of a “halacha p’suka” – an established law that may not be dismissed under any circumstance. Unfortunately, even in your situation, the seven clean days may not be reduced.

The first thing to check is whether you are delaying immersion due to extended staining. Once the bleeding is no longer bright red you should attempt to perform a hefsek taharah and bring it to a rabbi for evaluation. There are many shades of brown that will not invalidate the clean days and will allow you to begin counting the clean days sooner than 10 days into your cycle.

You should also discuss with your physician your lengthy periods and short cycles. Hormonal manipulation can help lengthen your cycle and shorten the bleeding. It is important to explain to your physician why the extended bleeding has a significant impact on your life. You can refer your physician to the section of our website designed for medical professionals, Jewish Women’s Health, for a physician-friendly explanation of the laws of niddah.

Please feel free to get back to us 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.

For further questions or comments: 

The Nishmat Women's Health and Halacha Site is a public service of Nishmat, The Jeanie Schottenstein Center for Advanced Torah Study for Women. This project and others like it are made possible by contributions from people like you. If you have benefited from the service, and wish to enable us to help others, click here to donate.

Users of Internet filtering services: This site discusses sensitive subjects that some services filter without visual indication. A page that appears 100% complete might actually be missing critical Jewish-law or medical information. To ensure that you view the pages accurately, ask the filtering service to whitelist all pages under

Accessibility Toolbar