Patient's question:
NoDoctor's answer:
The survival time of sperm is approximately 24 hours. After sexual intercourse, semen accumulates in the vagina, and semen contains a large number of sperm. The survival time of sperm is approximately 72 hours. Active sperm travel through the uterus to the ampulla of the fallopian tube to meet and fertilize the egg. The fertilized egg is then transported to the uterine cavity via the fallopian tube, where it "roams" for 2 to 3 days to find a suitable landing spot before implantation.