At present, there has not been any medical clinical trial confirming that tumor patients can’t soak in hot springs, steam sauna, sweat steam and foot soak, etc., but they still need to be treated differently according to the different physique of the patients. As people’s living standard is improving day by day and the pressure of life is aggravated, more and more people like to relax by soaking in hot springs, sauna, steam, foot bath, etc. To a certain extent, it does achieve the purpose of soothing the muscles and bones and relaxing the human body. However, there are many different opinions on whether these methods can be applied to patients with tumors, and this article will address this issue with a simple science. In the end, can tumor patients soak in hot springs, sauna, steam, foot soak? Can tumor patients soak in hot springs? Hot springs have existed since ancient times, and its main function can be understood as expanding blood vessels, accelerating blood circulation and promoting metabolism by means of hot baths, thus playing the role of soothing muscles and bones and reducing fatigue. At present, there are two views on whether tumor patients can soak in hot springs: some people think that tumor patients can not soak in hot springs because hot springs can accelerate blood circulation and promote metabolism, which can promote the growth and proliferation of cancer cells; the other viewpoint is just the opposite, and it is explained by the viewpoint of “heat therapy” which is more famous nowadays. Another viewpoint is the opposite, which is explained by the idea of “heat therapy”, which is more famous nowadays, that cancer cells are intolerant to high temperature, and the high temperature of hot springs is able to kill cancer cells, which is the claim of “scald to death” that is widely rumored on the Internet. So, does the high temperature of hot springs promote the growth of cancer cells? Or does it “scald to death”? In response to the first point of view, we have checked the literature and found that the claim that blood circulation promotes the growth and metastasis of cancer cells only remains in the stage of imagination, and there has not yet been any clinical medical test to confirm that soaking in hot springs can promote the growth of cancer cells. Another point of view of “scalding cancer cells to death” is whether cancer cells can be “scalded to death” or not. At present, it is more widely recognized that cancer cells do not tolerate high temperature conditions, generally 41℃～43℃ will lose its activity, which corresponds to the clinical “heat therapy”. However, it should be pointed out that the conditions of hot springs and clinical thermotherapy are not equivalent. The thermogenic sources applied in clinical tumor thermotherapy are mostly radiofrequency and microwave, which make use of their physical heat to heat the whole body and local area to reach the effective therapeutic temperature, and make use of the difference in temperature tolerance between normal tissue cells and cancer cells to achieve the therapeutic purpose of apoptosis of cancer cells without damaging normal tissues. Can the temperature of hot spring water reach the level of “scalding” cancer cells to death? The high temperature of hot spring water does not mean that the temperature of the body can reach the corresponding level, and there exists a thermoregulation system in our body, in fact, the temperature in hot spring is far from being able to reach the level of heat that can “scald to death” the cancer cells. In fact, hot springs are far from hot enough to “scald” cancer cells to death. So, can tumor patients soak in hot springs? In fact, this question cannot be generalized. Some tumor patients who are in stable stage, without tumors and in good physical condition are completely able to soak in hot springs. Prof. Jin Chang thinks that people with tumors are not recommended to soak in hot springs, because the temperature of hot spring water is difficult to reach the degree of damage to the tumor, and the best temperature for scalding the tumor should be above 60°. Ordinary thermotherapy 41° heat is best applied with chemotherapy at the same time, and the medical profession does not advocate applying it alone. In addition, the following people can not soak in hot springs: patients with cardiovascular and cerebrovascular diseases should not soak in hot springs: hot springs are easy to make a lot of sweating, heartbeat, blood vessel dilation, increased oxygen consumption of the heart, the temperature drops after the water, a cold and a hot, for the cardiopulmonary function of the poor patients are prone to stroke, myocardial infarction, and other risks; the poorer physique and the patients with yin deficiency and fire should not be soaked in the hot springs: hot springs, the body consumes a lot of energy, a lot of sweating represents a lot of fluid and energy, the body consumes a lot of energy. For patients with poor physical condition, especially those who have just finished surgery, radiotherapy and those who have high yin deficiency, hot spring is not recommended; for patients with skin wounds and ulcers, hot spring is not recommended because of the risk of infection. Can tumor patients take sauna or steam? With the previous explanation, it is easy to draw a conclusion by first understanding the characteristics of sauna and steam. Sauna using water vapor heating sweating, the temperature can reach 70 ℃ ~ 80 ℃, high temperature and high humidity sauna, people can only stay for 5 minutes, adapt to stay up to 8 minutes, and then go to room temperature room for cold bath cooling, alternating hot and cold, at least 3 times. Sweat steam is through the release of negative ions, subionic, steam and other high temperatures to make people sweat, metabolism of harmful substances in the skin, to achieve the effect of promoting blood circulation and metabolism, focusing on the emphasis on high heat. The general temperature can reach 35 ℃ ~ 40 ℃, people have to stay 50 to 60 minutes. Through the above comparison, it is not difficult to conclude that for the tumor patients who are in the stable stage, without tumor and with good physique, they can carry out appropriate sauna and steam to promote the metabolism, but for the patients who are not suitable for soaking in hot springs, it is also not suitable for sauna and steam. However, for patients who are not suitable for soaking in hot springs, sauna and steam are also not suitable. Compared with steam, sauna has more strict requirements on physical condition. Can tumor patients soak their feet? Hot water foot bath, also known as “foot bath” and “foot therapy” in Chinese medicine, is usually used as a kind of external treatment. Soaking feet in hot water can improve local blood circulation, has a certain effect of cold and warmth, is a common method of health care. As the saying goes, “rich people eat tonic medicine, poor people more foot soak”. Chinese medicine “medical text” foot therapy chapter also recorded: “people have feet, as if the tree has roots, tree roots first exhaustion, people old feet first decline.” Enough to illustrate the importance that people attach to this health care method of foot soaking. Feet reside in the farthest position from the heart, heavy burden, easy blood circulation is not good, by soaking the feet can improve local blood circulation, especially for people with cold hands and feet, can achieve the effect of cold. There are various reflex zones and acupoints of human internal organs in the sole of the foot, while soaking the foot, massaging and stimulating the sore and painful parts of the sole of the foot can achieve the purpose of relaxing the whole body and eliminating fatigue. From this, we can see that tumor patients can soak their feet, generally the temperature of soaking feet should not be too high, in order to tolerate their own body mainly, soak their feet for a long time, generally 15 to 20 minutes to the degree. However, it is not suitable for the following types of tumor patients to soak feet: 1, patients with long-term illness and weak physique can not soak feet, especially those who are weak after radiotherapy, and there is a risk of defecation in the case of excessive sweating when soaking feet; 2, patients with yin deficiency physique are not suitable for soaking feet: yin deficiency is often hot, and soaking feet can aggravate the yin deficiency, and it is usually not recommended to soak feet; 3, patients with cardio-cerebral and cerebral vascular diseases and low blood pressure are not recommended to soak feet for a long period of time: soaking feet should not be done for a long time. It is not recommended to soak feet for a long time: soaking feet can expand blood vessels and improve circulation, which can cause reduction of blood pressure, therefore, it is not recommended to soak feet for a long time for patients with cardio-cerebral and cerebral vascular diseases or patients with low blood pressure in general. In conclusion, according to their own situation, tumor patients can properly soak in hot springs, foot baths, sauna and steam, but they should be treated differently according to their physique. There is no obvious contraindication for patients with better physique, but for patients with poor physique, especially in the short term after surgery and weaker patients after radiotherapy, they are forbidden to soak in hot springs, foot baths, saunas and steams.