Hot springs are rich in trace elements beneficial to human health, offering certain efficacy for neuralgia, arthritis, skin rejuvenation, and fatigue relief. However, hot spring bathing is not suitable for diabetics. The high water temperature causes vasodilation and increased sweating, leading to dehydration. This can trigger blood sugar fluctuations, resulting in dizziness or even fainting.
Moreover, most diabetes patients suffer from peripheral neuropathy, causing abnormal sensations and numbness in palms and soles. This reduces sensitivity to temperature, making them prone to scalding from prolonged immersion without realizing it.
Particularly for insulin-injected patients, hot springs accelerate insulin absorption, triggering hypoglycemic reactions. Those with unstable blood sugar face heightened risks of accidents.
Whether bathing in hot springs or taking hot showers, the skin's outer layer absorbs water and sheds, thinning the stratum corneum. Hot water also washes away natural oils, accelerating moisture loss. Prolonged immersion in hot spring water—which is typically high in temperature and acidity—exposes skin to sulfur and mineral irritants, leading to dryness, itching, and "hot spring dermatitis." Diabetic skin is more fragile than average, making this condition particularly likely.
Diabetics may enjoy short hot spring soaks when blood sugar is stable, but water temperature should not exceed 40°C (104°F). They should take breaks every 15 minutes. After soaking, promptly pat the body dry and rinse with clean water to prevent sulfur or alkaline residues from causing skin inflammation. Avoid using soap or shower gel during rinsing, as skin is more vulnerable post-soak.