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Toji / onsen bathing (balneotherapy)

湯治

A listing is not a recommendation.

Origin: Japan · Tradition: Japanese onsen culture (worldwide, mineral-spring or spa bathing) · Heat & water

What it is

A traditional rest practice of entering hot-spring water repeatedly. It overlaps in part with European balneotherapy. It has been used for muscle tightness, joint pain, and tiredness.

A short introduction (not a treatment instruction)

1. Check your own health conditions first and read the spa’s cautions (for example, acute illness).
2. Avoid bathing just after a meal or after drinking alcohol. Start short (5 to 10 minutes).
3. If you feel light-headed or overheated, rest and take water.
4. A stay of several days (toji) should follow the facility’s guidance and not be forced.

Symptoms or aims often mentioned with this practice

• Low back pain
• Knee pain
• Muscle stiffness
• Tiredness
• Stress or unease
• Feeling cold easily

Related symptom videos

• Low back pain
• Knee pain & stiffness
• Stiffness / flexibility

Research notes (this is not a promise of effect)

B: Randomised trials or systematic reviews exist, but reports are modest, the group studied is limited, or study quality is limited

Reviews of mineral-spring and spa bathing (balneotherapy) have reported small to moderate changes in pain and quality of life in osteoarthritis and fibromyalgia. Study quality is not high, and effects of specific Japanese spring types have hardly been compared.

Sources

• Verhagen et al., Cochrane-based review: balneotherapy for osteoarthritis
• NCCIH: Mind and Body Approaches for Chronic Pain: What the Science Says