Hot spring is a kind of spring water that naturally gushes out from the ground. The temperature of the spring mouth is obviously higher than the local annual average temperature, and it contains mineral water with trace elements beneficial to human health.

There are also many areas where wells are drilled manually, generally 600 ~ 2000 meters. Groundwater is pumped by deep water pump and is rich in many beneficial minerals. The water temperature is generally above 20 degrees Celsius, also known as hot spring well. Because of the different climate, latitude and altitude, it is difficult to unify the lower temperature limit of hot springs.

There are different kinds of bathing methods in hot springs, and bathing usage is usually called mineral spring bath. Mineral spring bath is simple, comfortable and practical in the treatment and health care of some chronic diseases, and has its unique function, which is often superior to some drug treatments. Bathing is the most common form of mineral spring therapy. According to the nature of mineral spring, diseases and patients' physique, there are different bathing methods. The commonly used methods in clinic are immersion bath, shower, exercise bath and mechanical water bath.