Recently, two patients with “strange” pneumonia were admitted to the respiratory department of our hospital. Before the onset of the disease, they both took a bath, and within just one hour, they developed different degrees of blurred vision, dizziness, palpitation and weakness, chest tightness and shortness of breath, etc. One of the patients fainted and became unconscious …… Both patients were admitted to our emergency room with 120, and chest radiographs were taken a few hours later indicating the presence of pneumonia. Both patients were in good health before bathing and did not show any signs of disease, so why did “pneumonia” appear in just a few hours? First, let’s understand what is “bathroom syndrome”? We call this thirst, chest tightness, palpitations, nausea, dizziness, limb weakness, shortness of breath, even fainting or induced cardiovascular disease and a series of symptoms caused by bathing in the bathroom collectively as “bathroom syndrome”. Especially. In winter, the outdoor climate is cold, the bathroom pool water temperature is high, the humidity is supersaturated, water vapor pressure, doors and windows closed, ventilation is poor, the air is dirty, less oxygen, coupled with the number of bathers, frail people and the elderly are not quite adapt to the bathroom in this unique “microclimate”, so more likely to appear “Bathroom syndrome”, for the elderly, due to climate and physiological reasons, winter skin prone to itching, and therefore most like to take a hot bath in the bath. According to clinical medical data, about 10% of the elderly in the rest of the bath process, to varying degrees of “winter bath syndrome”. This is due to the general weakness of the elderly, tolerance and stress capacity is relatively poor, hot water immersion makes the elderly capillary expansion, a large amount of blood are stagnant in the body surface, for circulation, back to the heart of the blood volume is reduced, the heart transfusion bleeding is insufficient, so that the brain tissue occurs momentary ischemia, hypoxia, easily caused by the “winter bath syndrome”.