Japanese Onsen Bathing Etiquette (Practical Guide)

Japanese hot springs (onsen) are relaxing, but they follow a clear set of manners designed to keep the baths clean, quiet, and comfortable for everyone. Rules can vary by facility, so always follow posted signs—especially regarding tattoos and photography.

1) Before You Enter the Bath Area

• Pay attention to gender-separated entrances: Most onsen are separated into men’s and women’s baths. Look for:

  • 男 (Otoko) = Men

  • 女 (Onna) = Women

• Remove shoes: You usually leave shoes at the entrance (often in lockers).

• No swimsuits: Standard onsen bathing is nude. (Swimwear is typically not allowed unless it’s a special “spa” facility.)

• Keep valuables secure: Use lockers if available.

2) In the Changing Room

• Get fully undressed: Leave all clothing in your basket/locker.

• Tie up long hair: Hair should not touch the bath water.

• Bring only a small towel: Many onsen provide:

  • A small towel for washing/modesty while walking

  • A large towel for drying (kept in the changing area, not taken to the bath)

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3) Wash Thoroughly Before Entering the Bath

This is the most important rule.

• Sit at a shower station (don’t stand and spray others).

• Wash your body and hair completely with soap/shampoo.

• Rinse off all soap before approaching the bath.

• Keep your area tidy: rinse the stool and shower space when done.

4) Entering and Enjoying the Bath

• Enter slowly and quietly: The water can be very hot.

• No towel in the water: The small towel should not touch the bath water. Common practice:

  • Place it on your head, or

  • Leave it on the side of the bath

• Keep your hair out of the water at all times.

• No swimming, splashing, or rough play.

• Quiet voices: Onsen are for calm relaxation.

• No phones or cameras: Photography is almost always prohibited for privacy reasons.

5) What Not to Do

• Do not enter if you’re dirty or sweaty (wash first).

• Do not shave, brush teeth, or do grooming in the bath water.

• Do not drink alcohol in the bath area (and avoid bathing while intoxicated).

• Do not wear jewelry if the facility advises against it (some minerals can discolor metals).

6) Tattoos: What to Expect

Policies vary widely:

• Some onsen refuse entry to guests with tattoos.

• Others allow tattoos if covered with a patch.

• Some are tattoo-friendly, especially in tourist areas.If tattoos matter for your trip, check the facility policy in advance.

7) Health and Safety Notes

• Hydrate: Hot baths can dehydrate you.

• If you feel dizzy, exit immediately and cool down.

• Avoid bathing if you have a fever or feel unwell.

• Pregnancy, heart conditions, or blood pressure concerns: follow medical guidance and facility recommendations.

8) After the Bath

• Many Japanese people lightly rinse after soaking (optional; depends on water type and personal preference).

• Dry off before returning to the changing room to keep floors dry.

• After dressing, it’s common to rest and rehydrate (milk/tea/water are popular).

Quick “Do / Don’t” Summary

Do: wash first, keep hair up, keep towel out of water, be quiet, follow signs.Don’t: wear swimsuits, bring phones/cameras, splash/swim, enter without washing, soak while intoxicated.

If you tell me the specific onsen/area you’re targeting (e.g., Hakone, Beppu, Noboribetsu), I can tailor this to local norms and common facility rules.