Patient's question:
Sperm is wiped with tissues. How long does it take to dry? After it dries, will the part of the tissue that is stained with sperm change color?Doctor's answer:
Although sperm can survive in the male reproductive tract for several weeks, in semen after ejaculation, they can only live for up to 24-72 hours. However, if the temperature is lowered, semen can also be stored for several weeks; if frozen with liquid nitrogen, sperm can even be preserved for a long time. The survival conditions of sperm are very strict regarding temperature. Only when it is below body temperature (the temperature in the testes is generally lower than the average human body temperature) can they survive. Generally, sperm have a very short survival time outside the body, lasting only about 15 to 30 minutes.