Sperm in the penis mouth after ejaculation, the survival time at a temperature of about 37 degrees is usually a few hours, in addition to the external environment to judge, the length of survival time is different from person to person.
Usually the normal sperm survival time is usually a few hours at a temperature of 37 degrees. In the vagina, the sperm survival time is about twelve hours, and in the cervix, uterus and fallopian tubes, the sperm survival time is about two to three days.
Sperm survival time and the living environment, is very related, generally prefer warm and humid environment. In men after ejaculation if the sperm falls on the surface of a dry object, when the semen is dry, the sperm will not survive.
If after ejaculation, again sex should also be good contraceptive measures. In the event of an accident, please consult the hospital in time and seek medical help to avoid adverse consequences.