In Jain Dharma, a woman herself is never considered “impure” or “dirty” because of periods. Menstruation is a natural bodily process.

Your questions really have two parts:

1. Why only 3 days, when bleeding may last 6–7 days?
2. Is the remaining bleeding not unhygienic?

Let’s separate Jain principles from social/custom rules.

---

1. What Jain Dharma actually says

• Jainism focuses on inner purity – freedom from anger, pride, deceit, greed (kashaya).
• Body states like sweating, saliva, urine, stool, semen, and menstrual blood are treated as “ashaucha” (ritual non‑cleanliness) only in the context of worship rules, not as a judgment on the person.
• The idea is:

- Wherever there are bodily discharges, there are countless tiny living beings (nigodas). - When doing idol-puja, abhishek, handling temple food, etc., Jains aim for the highest level of cleanliness and minimum himsa.

So, during menstruation, many traditions say:

• Avoid touching idols, doing abhishek, preparing naivedya, or entering the inner sanctum.
• But you can do:

- Paath, jaap, bhav puja mentally, - Listen to pravachan, - Do svadhyaya and think of dharma at home.

Menstruation is therefore seen as a time of ritual caution, not moral impurity.

You can read more here

---

2. Why “3 days” if flow is 6–7 days?

The “3 days” rule is not from a central Jain scripture; it is mainly:

• Community / family achar (practice)
• Based on practical observation:

- Usually the first 2–3 days are heavier flow, more discomfort, more chances of staining, odor, and more micro‑life in the discharge. - So stricter temple/puja rules are applied mainly to those days.

After that:

• Flow is often lighter.
• With modern hygiene (pads, cups, bathing), the risk of visible uncleanliness is much less.
• Many families continue some restrictions the entire time; others relax them after 3 days.

This difference is cultural, not strictly “Jain-agam” based.

So:

• 3 days = a practical, traditional “minimum strict period” in many houses.
• Extra days (4–7) = handled differently in different families; some keep full rules, some partial, some none.

You can see a detailed Jain view here

---

3. Is the rest of the bleeding “not unhygienic”?

From a Jain point of view:

• Any ongoing bleeding or discharge has tiny living beings and requires good hygiene.
• That is why daily cleanliness is always stressed:

- Change pads/cups regularly, - Bathe, - Keep clothes and bedding clean.

But ritual rules often distinguish between:

1. Heavy, obvious discharge (first days)

- Higher chance of visible uncleanliness. - More strict: no idol touch, no temple rituals.

1. Light, manageable discharge (later days)

- If a woman is clean and comfortable, some families relax restrictions. - Others keep the same rules until bleeding fully stops.

So it’s not that later days are “clean” and first days “dirty” in an absolute sense; it’s a graded, practical approach to ritual cleanliness.

---

4. Digambar vs Shwetambar differences (brief)

• Both see menstruation as natural, not sinful.
• Digambar communities often:

- Have stricter and longer rules (more days of temple/puja restriction).

• Shwetambar communities often:

- Are a bit more flexible, sometimes limiting only the heaviest days or allowing distant darshan / home bhakti.

But actual practice is by local sangh and family achar, not universally fixed.

You can see various answers on this topic here

---

5. Essence in very simple words

• Jain Dharma does not say a woman is bad, sinful, or low because of periods.
• “Impurity” here means ritual non‑cleanliness due to a natural discharge that carries living beings, not moral dirtiness.
• 3 days is mostly a traditional, practical boundary for the heaviest time; it is not a fixed law of the soul.
• The most important purity in Jainism is:

- Pure bhaav (intention), - Less kashaya (anger, pride, deceit, greed), - Ahimsa and compassion—towards oneself also.

So yes, all days of bleeding require good hygiene, but Jain rules about 3 days versus 6–7 days are mainly custom-based, not a statement that the woman is “impure” as a person.