Patient's question:
How long is it normal for an erection to last?Doctor's answer:
As long as you can maintain it for two or three minutes, it's normal and there's no problem. In a normal adult, the penis is about 7-9 centimeters in a flaccid state and about 11-16 centimeters when erect. If it is less than 5 centimeters in a flaccid state and less than 10 centimeters when erect, it can be considered micropenis. What is your specific situation like? Size is just one aspect; the main thing to look at is the hardness of the erection.