Family Purity Ask a question

New to family purity? Start here

Family purity, explained simply

A gentle first look at taharat hamishpacha: what it is, why so many couples treasure it, and how a month unfolds, one step at a time. No background needed.

In one minute

What is family purity?

Family purity, taharat hamishpacha (טהרת המשפחה), is the set of Torah laws that guide the most private side of Jewish marriage.

Its rhythm parallels the wife's monthly cycle. When her period begins, husband and wife take a break from physical closeness. Once at least five days have passed, she checks that her period has ended, counts seven clean days, then prepares and immerses in a mikveh, a special pool of natural water. Then the couple come together again.

Then the cycle begins anew. Month after month, a time apart is followed by a time of reunion.

The short version

A time apart, checking, seven clean days, preparing, the mikveh, and a joyful return to each other. That's the heart of it. Everything else is detail, and the details can be learned gradually.

Why it matters

Why couples treasure it

Absence makes the heart grow fonder

Taking time apart each month means coming back together feels fresh. Many couples find the reunion keeps their marriage alive and new, year after year.

Body and soul

A marriage has a body, its laws and responsibilities, and a soul, the bond between husband and wife. The laws give the bond a framework in which to grow, like a good wine that matures over time.

Respect and sensitivity

The Torah asks a husband to honor his wife and speak to her gently, and asks her to honor him in return. Family purity builds that care into the rhythm of every month.

A month, step by step

How it works, in six simple steps

This is the cycle as it most commonly happens. Each step has a chapter in the book if you'd like to learn more.

  1. The cycle begins

    Niddah

    When the wife's period begins, she enters a state called niddah.

    Learn more: Chapter 2, Niddah
  2. A time apart

    Separation

    Until she immerses in the mikveh, husband and wife stop all physical contact. They are still a loving couple; they simply show it in other ways for now.

    Learn more: Chapter 4 quiz, the laws of separation
  3. At least five days later

    Checking the bleeding has stopped

    After at least five days, before sunset, the wife does a simple check with a soft white cloth to confirm her period has ended. This is called the hefsek tahara.

    Learn more: Chapter 5, Making Sure Menstruation Has Finished
  4. One week

    The Seven White Days

    Next come seven clean days. She wears white underwear, sleeps on white sheets, and checks twice a day to make sure all is clean.

    Learn more: Chapter 6, Seven White Days
  5. The seventh day and that night

    Preparing and immersing

    On the last day she bathes carefully, from head to toe, so nothing comes between her and the water. After nightfall she immerses in the mikveh.

    Learn more: Chapter 7, Preparing for Immersion · Chapter 10 quiz, Immersion
  6. Mikveh night

    Together again

    Husband and wife are together again. Many couples look forward to mikveh night as a monthly celebration of their marriage.

    Learn more: Chapter 11 quiz, Intimate Relations

The couple also keep a simple record of when each period begins and ends, so they can anticipate the next one. Chapter 14 quiz

See the steps on a calendar Read the book's one-page overview

A little vocabulary

Words you'll hear

Taharat hamishpacha טהרת המשפחה
"Family purity": the laws on this page as a whole.
Niddah נדה
The state a woman enters when her period begins, lasting until she immerses in a mikveh.
Mikveh מקוה
A pool built to strict standards, holding natural water such as rain. The word means a gathering of water.
Hefsek tahara הפסק טהרה
The check, before sunset, that confirms the period has ended.
Seven White Days שבעה נקיים
The seven clean days counted before immersing. Also called shiva nekiim.
Vestos וסתות
The dates, worked out from past cycles, when the next period is anticipated.
Choson and kallah חתן וכלה
Groom and bride. Couples usually learn these laws before their wedding.
Rav רב
A rabbi expert in these laws, who answers practical questions privately.

You're not alone

Common questions

It sounds like a lot to learn. Is it hard?

It feels like a lot at first, the way anything new does. But the cycle repeats every month, and after a few months most of it becomes second nature. Start with the six steps above; the details can come later, one chapter at a time.

What if something comes up and I'm not sure what to do?

That's completely normal, and asking is part of keeping these laws. Questions are answered by a rav, privately and respectfully. You can also ask Rabbi Jacobs on WhatsApp.

Do I need to know Hebrew?

No. The book Family Purity and this website explain everything in plain English. A few Hebrew words are worth knowing, and they're listed above.

Where should I begin?

Read the book's one-page overview, then the chapter Perfect Marriage, which sets out the beautiful outlook behind these laws. When you're ready, try a short quiz to see how much you've already learned.

Your next step

Keep going, at your own pace

This page is a simple introduction, not a complete guide. Every step has details that matter, and they are explained in Family Purity. For any practical question, please ask an orthodox rabbi expert in these laws.