Many people like to burn a pot of hot water to soak their feet before going to bed at night after a hard day. Soaking feet can effectively relieve fatigue. Soaking feet has many benefits to the human body, but some people had better not soak their feet with hot water. For example, people with varicose veins or venous embolism, it is best to soak their feet less, which will dilate blood vessels, speed up blood circulation and aggravate the symptoms of varicose veins. People with arterial occlusion of the lower limbs, it is best to soak their feet less, which will lead to ischemia. Diabetic patients should soak their feet less, and these three people should never soak their feet with hot water.

When people with varicose veins and venous embolism soak their feet, the arteries will expand to a certain extent, the blood circulation will accelerate, and more blood will flow into the lower limbs. The venous reflux ability of people with these two diseases will not be strengthened, which will make the blood stasis of lower limbs more serious. At the same time, it may also lead to capillary rupture and blood spots on the skin. After a long time, it will cause pigmentation and lead to blackening of the calf.

There are three types of diabetes: neuropathy, ischemia and mixed type. Neuropathic type is insensitive to temperature and pain due to partial nerve necrosis, which may lead to lower limb burns due to inaccurate water temperature control. Ischemic type is more serious, and its symptoms and principles are similar to those of lower limb occlusion. It is worth noting that if the tissue is in a state of severe ischemia for a long time, it may be necrotic due to insufficient oxygen supply, and even lead to amputation.

With the increase of temperature, the oxygen consumption of tissues and cells will increase, and the demand for blood will also increase. Therefore, soaking feet will increase the blood flow of normal blood vessels, and the occluded arteries near normal tissues will become more ischemic because of siphon phenomenon, which is called "stealing blood" in medicine. Arterial occlusion of the lower limbs itself will cause partial tissue ischemia, while soaking feet in hot water will lead to more serious ischemia due to the above reasons.

These three kinds of people should never soak their feet with hot water. People with physical diseases need to pay more attention to problems when soaking their feet. People with varicose veins of lower limbs should pay attention to time and water temperature when soaking their feet. They should not soak their feet for too long, otherwise it will speed up blood circulation and easily aggravate the symptoms of varicose veins. Diabetic patients had better be careful to soak their feet.