There may be times when immersion with a cast can be permitted if the cast will be on for a long time. Each situation needs an individual psak to determine the correct course of action. It would be best to discuss this with a rabbi who knows you personally. If you do not have access to such a rabbi and wish us to arrange a psak for you, please get back to us with the following details:
How long does the cast need to be in place?
How long will you be niddah if you cannot immerse because of the cast (when in your cycle did you break your leg – were you already niddah, or were you tehorah at the time)?
Do you have a physician who might be willing to remove and replace the cast, and at what cost?
Is it a plain plaster cast that will be ruined by water, or a fiberglass cast?
Are there any factors that make it particularly hard to be niddah for a prolonged period at present?
You may also call our telephone hotline to consult with a yoetzet.