Premature ejaculation is a condition in which the man loses control over ejaculation and makes him ejaculate sooner after penetration.
The average time of premature ejaculation is 0-90 seconds after penetration. Premature ejaculation occurs when a man ejaculates too sooner after penetration. The average time of ejaculation is roughly around 6 minutes.
Premature ejaculation can occur due to psychological factors, such as stress, anxiety, or other emotional problems, or it can also happen due to health problems, like, heart diseases, blood pressure issues, etc.
Premature ejaculation becomes an issue when it happens frequently. If you are consistently ejaculating sooner after penetration, then you should visit a doctor.