##1. Your first erection
Penises are born ready. It is common for babies to exit the womb with an erection. Even before the moment of birth, ultrasound scans sometimes show a fetus with a fully formed erection.
##2. Your penis is twice as long as you think
A lot of men might take solace in this fact: our penises are longer than they look. In fact, around half of its entire length is housed inside of our bodies. Nearly half of your penis housed inside the body.
##3. 'Morning wood'
Most men have 3–5 erections every single night — mostly during REM sleep, as with the in utero boys.
Whatever the reason behind nocturnal erections, they can be useful as a diagnostic tool. If a man has difficulty achieving an erection when awake but becomes erect when he sleeps, it is an indication that there is a psychological issue, rather than a physical one.
However, if he does not get erections during sleep, the issue may be physical.
##4. One final erection
We can get erections in the womb and during sleep, but this is perhaps even more surprising: the death erection. Also called angel lust or terminal erection, it happens in the moments after death.