In summer, when wearing less clothes, when hot liquid and hot objects touch the body because there is no clothing protection, burns are easily formed. For example: hot rice, hot soup, etc. If the water tank boils in summer, stop the car, wait for the water temperature to become low and then open the lid to cool down, and when opening the lid, cover the lid with a towel and then spin it open to prevent hot water and steam from being emitted. Motorcycle exhaust pipe burns are also common in the summer, the main injury site is the outer calf, often deep second degree injury. Because the pain is not obvious in the early stage and the scope of burns is relatively small, patients do not pay enough attention to the early stage and do not handle the wound properly, often coming to the clinic only after the affected area becomes swollen and painful. For such burns, patients are advised not to apply colored drugs at will and should seek medical attention as soon as possible. In summer, combustible dust (such as sawdust, active metals, etc.) may burst into flames at a certain concentration and temperature, often forming serious burns, and personnel and units engaged in such work should pay attention to it. Summer rain, air humidity, air conditioners, refrigerators and other large electricity consumption, should pay attention to the existence of aging wires and other conditions to prevent fire. In a humid environment normally non-conductive objects may become conductors, thus increasing the chance of electrical contact burns. So please never refuse to work with electricity. Please pay attention to lightning protection during thunderstorms. I will provide general knowledge of lightning protection in the near future.