Syphilis dies quickly if exposed to air after leaving the body. Alcohol can easily kill syphilis spirochetes; temperatures over 41℃~42℃ can kill within 1~2 hours. Syphilis is a sexually transmitted disease (STD), and the main means of transmission is through direct transmission through sexual intercourse, kissing, lactation, and medical care, and family transmission through clothing, equipment, and eating utensils. Therefore, it is recommended that the family eating utensils of syphilis patients should be separated, because this germ has saliva transmission. For syphilis patients used utensils should be sterilized at high temperatures, you can use more than fifty degrees above the water to kill the virus, sun screen to kill the virus, sun screen in the sun, alcohol disinfection and so on. Syphilis can survive for years at temperatures as low as -78 degrees Celsius. Therefore, the blood and body fluids of syphilis patients are not to be kept frozen in non-medical laboratories.