Boys will stand up to pee at any point once they have made the connection. It is probably easiest to introduce your son to stand-up peeing closer to or after his second birthday when he has more balance, height, and control. It is likely that once he realizes he can stand up to pee, he may no longer want to sit down on the potty. This means if he hasn’t become accustomed to knowing when and how to poop on the potty, he will begin pooping in his diaper. We recommend trying to choose the time of the day he is most likely to poop and asking him to sit down. It may be a challenge but you can remind him, “Even daddy sits down to focus and poop sometimes.” Setting a specific potty try time, will make it routine rather than a struggle each time.