You're about to enter a Japanese onsen or bathhouse and you've been handed two towels. Here's what each one is for — and the one rule that matters most.
15-Second Answer
There are usually two towels. The small one goes into the bathing area with you — but not into the bath water itself. Place it on your head or set it at the washing station. The large towel stays in the changing room and is used to dry off after you're done. Do a quick rinse before entering the bath.
The Two Towel Types
Large bath towel (バスタオル): This one usually stays in the changing room. Use it to dry off properly when you're done and heading back to get dressed.
Small towel (手ぬぐい or small towel): This is what you bring into the bathing area. It's used at the washing station, and when you get into the bath, you keep it with you — on top of your head or set aside at the edge.
Where to get them: At a ryokan or hotel onsen, towels are usually provided in your room. At a public bathhouse or day-use onsen, you can rent or buy them at the front desk for a small fee. If you've forgotten yours, almost every facility will have some available.
What to Do with the Small Towel
- At the washing station: Use it normally to wash your body.
- In the bath: Keep it with you, but don't put it in the water. Fold it loosely and rest it on top of your head — this is the most common approach. Setting it at the edge of the bath or nearby is also fine.
- After getting out: Use the small towel lightly before heading back to the changing room, then dry off fully with the large towel there.
The small towel on the head is one of the most recognizable images of Japanese onsen culture. You don't have to do it, but it's a practical way to keep the towel out of the water while having it nearby.
Why Towels Don't Go in the Bath
The bath water is shared by everyone using the facility. Soap, shampoo, and the residue from a used towel would contaminate the water for other bathers. Keeping towels out of the bath is how everyone maintains the quality of the shared water together — it's one of the core etiquette points of onsen culture.
What to Do Before Entering the Bath
Before stepping into the bath, rinse your body at the washing station or use the small wooden bucket (桶, oke) to pour hot water over yourself. This is called kakeyu (かけ湯) and is standard practice — it rinses off any sweat or residue before you enter the shared water.
Many people wash more thoroughly at the washing station before entering the bath. Either approach is fine; the kakeyu rinse at minimum is the expected step.
A Few Practical Tips
- Buckets and stools: Put them back where you found them when you're done at the washing station.
- Shower direction: Keep the showerhead aimed at your own space — splashing neighboring stations is the main thing to avoid.
- Re-entering the changing room: Give yourself a light towel-down before crossing back into the changing room so you're not dripping.
Ryokan vs. Public Bathhouse
Ryokan or hotel onsen: Towels are usually provided and waiting in your room. The experience tends to be more relaxed, and signage sometimes explains the basics.
Public bathhouse (sento) or day-use onsen facility: Bring your own towels or pick them up at the front desk. The atmosphere is more local and practical. The towel rules are the same either way.
Bottom Line
Small towel into the bathing area — but not into the bath water. Large towel stays in the changing room. Rinse before you enter the bath. Those three points cover everything you need to know before your first onsen experience in Japan.
