Siman 196 · Hefsek Tahara and the Seven Clean Days (הפסק טהרה וז' נקיים)
To close in purity, to count the seven "clean" days, to check — to discover and understand
יורה דעה · סימן קצ״ו
דִּינֵי הֶפְסֵק טָהֳרָה וּשְׁבְעָה נְקִיִּים
🌱 Introduction Level · מתחילים
✦ ❖ ✦
A first approach to Siman 196: the 13 seifim of the Mehaber and the glosses of the Rama, vocalized Hebrew text and a fluent English translation. This is the operational heart of טהרת המשפחה: before counting the seven "clean" days (שבעה נקיים) that precede the mikveh, the woman must first "close in purity" through the הפסק טהרה — a bedika of stopping performed close to בין השמשות — and then check each day. The siman settles the מוך דחוק of the single day, the bedika cloth, the special cases (the blind, the ill), the continuity of the seven days (seeing undoes everything) and the פולטת שכבת זרע. These are practical (lema'asse) rules, to be learned from a Rav or a moret kalla.
Topic: The hefsek tahara, the שבעה נקיים and the בדיקות Source: שולחן ערוך יורה דעה סימן קצ״ו
Compilation: הרב יוסף חיים סממה DAAT · daattorah.com
📑 Study Plan
1.The text of the Mehaber: the 13 seifim, grouped into 6 families
2.Context: what the hefsek tahara and the seven clean days are
4.The table of the בדיקות: when, how many, with what
5.The Shach and the Taz: who they are, their role in Yoreh De'ah
6.The gloss of the Rama (הגה): the customs and the precisions
7.The continuity of the seven days and the פולטת שכבת זרע
8.Modern practical cases: the hefsek, the bedikot, a stain, the poletet
9.Synthesis and comprehension questions
1. The text of the Mehaber — the 13 seifim
Siman 196 is one of the most central and practical of all the laws of niddah: it describes how a woman passes from the status of נדה to that of טהורה. After the bleeding stops, she cannot immerse at once: she must first perform a הפסק טהרה — a check that "closes in purity" — and then count seven "clean" days (שבעה נקיים), checking herself each day. The Mehaber (Rabbi Yossef Karo) settles all its details: the moment of the stopping bedika, the מוך דחוק, the cloth, the special cases, the continuity and the פולטת שכבת זרע. The Rama (Rabbi Moshe Isserles) adds his glosses (הגה). Let us discover the 13 seifim grouped into six families.
Family 1 — The הפסק טהרה: the stopping bedika (seif 1)
The seven days the woman counts begin on the morrow of the day she stopped (ממחרת יום שפסקה). And this is her rule: if she saw two days or three and then stopped seeing, she checks herself on the day she stopped, in order to "close in purity" (כדי שתפסוק בטהרה), and this bedika is done close to בין השמשות (סמוך לבין השמשות), just before sunset. Gloss of the Rama: and such is the custom לכתחילה (a priori, of first intention).
The founding act. The הפסק טהרה — the "stopping bedika" — is the key that opens the count of the seven days. One does not begin to count from the end of the bleeding, but only after she has checked herself and found herself pure at day's end, just before twilight. The count of the seven days then begins the next day.
Family 2 — The מוך דחוק and the single day (seif 2)
If she saw only one day and stopped that same day, she must check herself with a מוך דחוק (a tight wad), present throughout בין השמשות (the twilight). Gloss of the Rama: and בדיעבד (after the fact), if she checked herself close to בין השמשות and found herself טהורה — even if the מוך did not remain in place for the whole twilight — that suffices (סגי).
מוך דחוק — "The tight wad": a bedika cloth inserted and left in place, more demanding than the ordinary stopping bedika. It is used when the risk of residual bleeding is greater — typically when the woman saw only one single day. The Rama is lenient בדיעבד when the end-of-day bedika was found pure.
Family 3 — White garments, the checked garment and the start of the count (seif 3)
Seif 3 — The checked garment, the sheets, and counting from the next day
On the day she stopped seeing and checks herself as stated, she puts on a חלוק בדוק — a checked garment, with no כתם (no stain) — and at night she lays down checked sheets (סדינים הבדוקים), free of stains; and from the next day she begins to count the שבעה נקיים. Gloss of the Rama: it is a valid custom (מנהג כשר) that the woman, when she "closes in purity," washes (in warm water) and puts on white garments (לבנים); however, if she washed only "the lower part" (בית הקמטים, the folds of the body), that suffices.
Why white garments. The חלוק בדוק and the checked sheets, like the white garments (לבנים), serve a practical function: during the seven days, the slightest כתם (stain) must be detectable. A clean white background allows the check; a dark or stained background would make it impossible. It is also a מנהג כשר recommended by the Rama, the details of which are settled with a moret kalla.
Family 4 — The בדיקות of the seven days (seifim 4-5, 9)
Seif 4 — Two bedikot a day; בדיעבד a single one suffices
On each of the seven days of the count, she must check herself לכתחילה twice a day — once in the morning (שחרית) and once close to בין השמשות. And if she checked herself only once over the seven days — whether on the first day, the seventh, or one of the middle days — since she did check, it counts for her (בדיעבד).
Seif 5 — One never counts without a true hefsek in purity
If she checked herself on the day she stopped and found herself טמאה (impure), then checked herself three or four days later and found herself טהורה, she remains בחזקת טמאה (presumed impure) until she has "closed in purity" through a true stopping bedika. For she never counts until she has verified the stopping — and only then does she count from the next day.
The woman who multiplies the בדיקות (מרבה לבדוק) — whether during her days of counting or on the days she did not see — is praiseworthy (משובחת), even if she has a fixed period (וסת קבוע).
The logic of the bedikot of the seven days: לכתחילה two per day (morning + before twilight); בדיעבד a single one over the seven suffices; but never a valid count without a true הפסק טהרה — as long as she does not "close in purity," she remains בחזקת טמאה. And multiplying the checks is always praiseworthy.
Family 5 — The cloth of the בדיקה and the special cases (seifim 6-8)
All these בדיקות — both the bedika of the הפסק טהרה and those of the seven days — must be done with an old white linen cloth (בגד פשתן לבן ישן), cotton (צמר גפן), or clean, soft white wool (צמר לבן נקי ורך). She inserts it deeply, into the folds (לחורים ולסדקים), up to the place "עד מקום שהשמש דש", and looks whether it bears any reddish tint (אדמומית). The examination is done by daylight.
The deaf woman who hears but does not speak, or speaks but does not hear, is like a lucid woman (פקחת). But she who neither hears nor speaks, likewise the mentally incapacitated woman (שוטה) or one whose mind has become disturbed by illness — other lucid women (פקחות) check them and fix וסתות for them (identified cycles), so that they may be permitted to their husbands.
The material and the act. The bedika is not done with just anything: a white, clean and soft cloth (old linen, cotton or wool), so that the slightest red tint is visible; it is inserted deeply, and examined by daylight. And the siman forgets no one: the blind woman is helped by a companion, the deaf-mute or the ill woman are checked by others. The exact practice is transmitted from woman to woman and with a moret kalla.
Family 6 — Continuity of the seven days and the פולטת שכבת זרע (seifim 10-13)
The seven "clean" days must be consecutive (רצופים), with no sighting of blood. For if she sees blood — even on the eve of the seventh day — it סותר (undoes) all the days, and she must perform a הפסק טהרה anew and then recount seven "clean" days from the start. Gloss of the Rama: some say that, in the first three days of the count, if she finds a כתם (stain), one does not give it the benefit of the doubt (תולין) as readily as on the later days.
Seif 11 — The פולטת שכבת זרע and the count on the 5th day
The פולטת שכבת זרע (she who expels seed) during her days of counting — if it is within the שש עונות (six "periods") following the union — undoes that day (סותרת אותו יום). Therefore she who had a union, saw blood afterward and then stopped, does not begin to count the seven days until six full עונות have passed (lest she still expel) — that is, from the 5th day (יום ה' לשימושה).
If she erred by one day in the count, immersed and then had a union, she must wait six full עונות, and then count one "clean" day and immerse again. But a "undoing" that occurs after the seven days — for example if she had not immersed properly and had a union — then she may immerse at any time (once properly counted).
The woman who had a union, saw blood afterward and then stopped, and who wishes to count from the next day of her sighting, cleans well (תקנח יפה יפה) with a מוך or a cloth to expel all the seed (כל הזרע), or washes in warm water (מים חמין), which will expel it. Gloss of the Rama: but some say that today we are no longer expert (אין אנו בקיאין) in this, and that one does not rely on it — rather one waits the six עונות.
Continuity is everything. The seven days must remain unbroken: a single sighting of blood, even on the seventh eve, סותר everything (seif 10). And the פולטת שכבת זרע is, within the six עונות, treated as a sighting: after a union, one begins to count only on the 5th day (seif 11). The Rama adds that today one no longer relies on cleaning alone (seif 13). All of this is settled, in practice, with a Rav or a moret kalla.
2. Context — the hefsek tahara and the seven clean days
The previous simanim established when a woman becomes נדה, stains (כתמים, sim. 190) and the veset. Siman 196 answers the following question: how does she become טהורה again? The answer lies in three stages: (1) after the bleeding stops, she performs a הפסק טהרה — a bedika that "closes in purity"; (2) she counts seven consecutive "clean" days (שבעה נקיים), checking herself; (3) she may then immerse in the mikveh (siman 197 and following). This is the central mechanism of טהרת המשפחה, and therefore one of the most practical simanim in all of Yoreh De'ah.
The six families of Siman 196
Family
Seifim
The essential
The הפסק טהרה
1
Close in purity, close to בין השמשות; count from the next day
The מוך דחוק / single day
2
If she saw only one day: tight wad throughout the twilight
White garments and the count
3
Checked garment and sheets, white garments; begin the next day
The בדיקות of the 7 days
4-5, 9
2/day לכתחילה; one suffices בדיעבד; never without a true hefsek
The cloth and special cases
6-8
White linen/cotton/wool; the blind, the deaf-mute, the ill woman
Continuity and the פולטת
10-13
Seeing undoes all; the poletet; count on the 5th day; the cleaning
The transversal idea: one does not "decide" alone to be pure. Purity is built in verified stages — an established stopping (הפסק), seven uninterrupted days (רצופים), bedikot done according to the rules. Every link matters, and a single sighting breaks the chain. This is why this siman is learned, and lived, under the guidance of a Rav and a moret kalla.
3. The key concepts of this siman
To understand Siman 196, one must master a small vocabulary that describes each stage of the passage to purity.
הפסק טהרה — "The closing in purity": the stopping bedika done on the day the bleeding stopped, close to בין השמשות, which must be found pure (תפסוק בטהרה) in order to begin the count the next day (seifim 1, 5).
שבעה נקיים — "The seven clean days": the seven consecutive (רצופים) days counted after the hefsek, during which she checks herself and sees no blood, before she can immerse (seifim 4, 10).
מוך דחוק — "The tight wad": a more demanding bedika, left in place throughout the twilight, required when the woman saw only one single day (seif 2).
בדיקה (pl. בדיקות) — "The check": the examination by means of a white cloth inserted deeply; לכתחילה twice a day (morning + twilight), בדיעבד one suffices (seifim 4, 6).
סתירה (from the verb סותר) — "The undoing": a sighting of blood during the seven days undoes the whole count, even on the eve of the seventh day (seif 10); the פולטת undoes the day in question (seif 11).
פולטת שכבת זרע — "She who expels seed": within the six עונות following a union, this expulsion is treated as a sighting; hence the count begins only on the 5th day (יום ה') (seif 11).
Two markers of time.בין השמשות — the "twilight," that moment of transition between day and night when the stopping bedika is done לכתחילה. And עונה (pl. עונות) — a "period" (a day or a night); the six עונות measure the waiting period of the פולטת. These technical notions are clarified with a Rav or a moret kalla.
4. The table of the בדיקות — when, how many, with what
The essence of the siman fits into one table: at each stage, when to check, how many times, and with what.
Stage
Check
Seif
The day of stopping — הפסק טהרה
1 bedika, close to בין השמשות (לכתחילה)
1
If she saw only one day
מוך דחוק present throughout the twilight
2
Each of the 7 days — לכתחילה
2 bedikot: morning (שחרית) + before twilight
4
Over the 7 days — בדיעבד
1 single bedika suffices (1st, 7th or middle)
4
The bedika cloth
Old white linen / cotton / white wool, clean and soft
6
If the hefsek was found טמא
🔴 בחזקת טמאה — start a true hefsek anew
5
Multiplying the bedikot
🟢 משובחת — even with a וסת קבוע
9
Seeing blood, even on the 7th eve
🔴 סותר everything — redo hefsek + 7 days
10
After a union (פולטת)
Count from the 5th day (יום ה')
11
The logic in one sentence: one "closes in purity" (הפסק) at day's end, then counts seven consecutive days, checking ideally twice a day with a white cloth — and any sighting of blood, at any moment of the seven days, makes everything start over.
5. The Shach and the Taz — the great commentators
In Yoreh De'ah, the Shulchan Aruch is never read alone. Two great commentaries accompany it on every page and structure the practical study: the Shach and the Taz. These are the nossei kelim of reference in Yoreh De'ah. On the laws of niddah, dedicated works such as the Sidrei Tahara and the Chochmat Adam are added to them, particularly precious for the hefsek tahara and the bedikot.
The Shach (ש״ך) — an abbreviation of שפתי כהן, Siftei Kohen, by Rabbi Shabtai haCohen (Lithuania, 17th century). It is the reference commentary on Yoreh De'ah, of great analytical depth. On our siman, it clarifies the details of the hefsek, of the מוך דחוק and of the bedikot.
The Taz (ט״ז) — an abbreviation of טורי זהב, Turei Zahav, by Rabbi David haLevi Segal (Poland, 17th century). Often in dialogue — and sometimes in disagreement — with the Shach. Here he illuminates the hefsek tahara, the bedika cloth, the פולטת and the סתירה.
The Pitchei Teshuva, a mine for this siman
Besides the Shach and the Taz, the Pitchei Teshuva (Rabbi Avraham Tsvi Hirsch Eisenstadt, 19th century) gathers here a great many responsa of the Acharonim on concrete cases: the hefsek, the מוך דחוק, the white garments, a כתם found during the seven days, the פולטת, the woman who "occupied herself" (נתעסקה). Through it, one accesses the rich practical literature of the siman.
One sees the method: the Shach and the Taz do not repeat the Mehaber — they explain the mechanism of each stage (why "close in purity" before counting? what does a מוך דחוק change?) and rule on the custom. This is exactly what is deepened at the Lamdan level, and applied at the Halakha lema'asse level with the contemporary poskim.
6. The gloss of the Rama (הגה)
The Rama (Rabbi Moshe Isserles) adds to the text of the Mehaber glosses that reflect Ashkenazi custom and refine the practice. Here are his most striking interventions in our siman.
On seif 1 — the stopping bedika לכתחילה
Gloss of the Rama: וכן נוהגין לכתחלה — "and such is the custom of first intention." The Rama confirms that doing the הפסק טהרה close to בין השמשות is indeed the practice לכתחילה.
On seif 2 — the בדיעבד of the מוך דחוק
Gloss of the Rama: ובדיעבד אם בדקה עצמה סמוך לבין השמשות ומצאה עצמה טהורה… סגי — "and after the fact, if she checked herself close to בין השמשות and found herself pure… that suffices," even if the מוך did not remain in place for the whole twilight.
On seif 3 — the מנהג כשר of the white garments
Gloss of the Rama: ומנהג כשר הוא… שתרחץ ולובשת לבנים — "it is a valid custom… that she washes and puts on white garments" at the time of the hefsek; and if she washed only בית הקמטים (the lower folds), that suffices.
On seif 10 — the כתם of the first three days
Gloss of the Rama: יש אומרים דבשלשה ימים ראשונים… אין תולין אותו להקל — "some say that, in the first three days of the count, one does not give a כתם the benefit of the doubt" as readily as on the later days.
On seif 13 — "אין אנו בקיאין"
Gloss of the Rama: ויש אומרים דאין אנו בקיאין בזמן הזה ואין לסמוך על זה — "some say that today we are no longer expert in this, and that one does not rely on it." One therefore does not shorten the waiting on the cleaning alone: one waits the six עונות.
The Rama carefully distinguishes the base law (the Mehaber) from the lived practice: he confirms the customs לכתחילה (the bedika at twilight, the white garments), eases certain בדיעבד (the מוך), but tightens elsewhere (the כתם of the first three days, the "אין אנו בקיאין" of the פולטת). This is the whole balance of this siman.
7. The continuity of the seven days and the פולטת
Seifim 10 to 13 — the delicate heart of the siman — set out a rule simple to state but heavy in its consequences: the seven days must be consecutive.
A sighting of blood — at any moment of the seven days, even on the seventh eve: everything is undone, one redoes hefsek + seven days (seif 10).
The פולטת שכבת זרע — within the six עונות after a union, the expulsion of seed is treated as a sighting and undoes that day; hence the count begins only on the 5th day (יום ה') (seif 11).
The Mehaber adds the case of the error in the count (seif 12) and the cleaning of the seed (seif 13), where the Rama notes the "אין אנו בקיאין."
Question
Answer
Does a sighting on the 7th eve undo everything?
🔴 Yes, סותר everything (seif 10)
A כתם in the first 3 days?
🟡 One is not as quick to be lenient (Rama)
After a union, when does the count begin?
🟡 On the 5th day (יום ה' לשימושה)
Rely on the cleaning of the seed alone?
🔴 Not today (אין אנו בקיאין, Rama)
The continuity of the seven days is non-negotiable: a single interruption makes everything begin again. And after a union, the count is postponed so as not to confuse the פולטת with a sighting. The exact detail — especially for the פולטת and a כתם — is always settled with a Rav or a moret kalla.
8. Modern practical cases
How do these rules take shape in life today? Here are four common situations illuminated by our siman. Each one closes with the same reference: the concrete decision belongs to the Rav or the moret kalla.
Case 1 — Doing the hefsek tahara
At the end of the bleeding, on the day of stopping, the woman washes (at least בית הקמטים), puts on white garments (לבנים), and performs her stopping bedika with a white cloth, just before sunset (סמוך לבין השמשות) — seif 1. If she saw only one day, a מוך דחוק is required of her (seif 2). The precise act — how to insert, how to look, at what exact time — is learned from a moret kalla or a Rav.
Case 2 — The seven clean days and the bedikot
During the seven days, she checks herself ideally twice a day (morning + before twilight) with white bedika cloths (עדים) (seifim 4, 6); a single one over the seven suffices בדיעבד, but multiplying is praiseworthy (seif 9). In case of doubt about a color (is the tint reddish or not?), one never rules alone: one keeps the cloth and shows it to a Rav (cf. siman 188). The proper use of the bedikot is transmitted with a moret kalla.
Case 3 — A stain during the seven days
If a stain (כתם) appears during the seven days, the question is: does it undo (סותר) the count, or not? (seif 10, and cf. siman 190 on the כתמים). Many parameters come into play (the size, the surface, the day). This is precisely the kind of case one does not rule on oneself: one puts the question to the Rav, without presuming the answer.
Case 4 — The poletet, after a union before the טבילה
After a union (for example the first, cf. siman 193), if she sees blood and then stops, she does not begin to count at once: because of the פולטת שכבת זרע, the count begins on the 5th day (יום ה') — seif 11. The siman mentions a cleaning to shorten this (seif 13), but the Rama teaches that today one no longer relies on it (אין אנו בקיאין). The exact conduct, here more than anywhere, follows the instructions of a Rav.
The thread running through the four cases: Siman 196 is the manual of regained purity — but it is a manual that is learned and asked about. One learns the hefsek and the bedikot with a moret kalla; one puts to the Rav any question of color, stain or פולטת. The concrete decision always belongs to the Rav or the moret kalla.
9. Synthesis of Siman 196
The essence of Siman 196 in a few sentences:
The הפסק טהרה "closes in purity" on the day of stopping, close to בין השמשות; the count of the seven days begins the next day (seif 1).
If she saw only one single day, she checks herself with a מוך דחוק present throughout the twilight; בדיעבד a pure bedika suffices (seif 2).
She puts on a חלוק בדוק and lays down checked sheets; the custom of the white garments and of washing (seif 3).
The בדיקות: לכתחילה two a day (morning + twilight); בדיעבד one suffices; never a count without a true hefsek — otherwise בחזקת טמאה (seifim 4-5); multiplying is משובחת (seif 9).
The cloth: old white linen, cotton or white wool, clean and soft, inserted deeply, examined against an אדמומית (seif 6); the blind woman shows it to a companion (seif 7); the deaf-mute / ill woman is checked by others (seif 8).
The seven days are consecutive: seeing blood, even on the 7th eve, סותר everything (seif 10).
The פולטת שכבת זרע, within the six עונות after a union, undoes the day: one counts from the 5th day (יום ה') (seif 11); error in the count → six עונות then one day (seif 12); the cleaning of the seed, but "אין אנו בקיאין" today (seif 13).
Memory table
Stage
Rule
The הפסק טהרה
Close to בין השמשות; count from the next day
Only one day seen
🟡 מוך דחוק throughout the twilight
The בדיקות of the 7 days
2/day לכתחילה; 1 suffices בדיעבד
Hefsek found טמא
🔴 בחזקת טמאה — start over
The cloth
White linen / cotton / wool, clean and soft
Seeing, even on the 7th eve
🔴 סותר everything
The פולטת (after a union)
🟡 Count from the 5th day (יום ה')
The cleaning of the seed alone
🔴 Not today (אין אנו בקיאין) — see the Rav
Comprehension questions
Check your understanding:
At what moment of the day is the הפסק טהרה done, and what does "closing in purity" mean (seif 1)?
In which case is a מוך דחוק needed, and what does the Rama permit בדיעבד (seif 2)?
Why does one put on a חלוק בדוק and white garments? What is the Rama's מנהג כשר (seif 3)?
How many בדיקות per day לכתחילה? How many suffice בדיעבד (seif 4)?
What happens if the hefsek was found טמא and then טהור a few days later (seif 5)?
With which cloth is the bedika done, and how is it examined (seif 6)?
How do the blind woman (seif 7) and the deaf-mute or the ill woman (seif 8) check themselves?
Why is multiplying the bedikot משובחת, even with a וסת קבוע (seif 9)?
Does a sighting of blood on the seventh eve undo the count (seif 10)?
What is the פולטת שכבת זרע, and why does one count from the 5th day (seif 11)? What does "אין אנו בקיאין" mean (seif 13)?
To go further
If you wish to deepen this siman:
📚 Level 2 — Lamdan: the pilpoul — the nature of the הפסק טהרה, the מוך דחוק (Rashba / Ramban), the שיעור הבדיקה "עד מקום שהשמש דש", the logic of the סתירה, the gzera of the פולטת and the six עונות, the מיעוט בדיקות בזמן הזה
✨ Level 3 — Synthesis: the comparative tables (hefsek / bedikot / סתירה), the rules of thumb and the quick memorization of the 13 seifim
⚖️ Level 4 — Daat HaRav (Chabad) & Halacha lema'asse: the Chabad mesorah (Tzemach Tzedek) and the practical psika (Shach, Taz, Sidrei Tahara, Chochmat Adam, Aruch haShulchan, Taharat haBayit, Shevet haLevi) on the concrete cases
The sources for this level can be consulted on Sefaria: