DS has always loved to play with himself. When we first tried potty training him this caused problems. Now we are fine with using the potty but he still loves to play with himself. When we are at home he will hide and pull it out of his underwear and play with it. When we notice we tell him to put it up. Last week his his teacher told my mom that he pulled it out and tried to show it to the other kids. I laughed when my mom told me the story but I know this is not funny. I know this fascination never really ends but does anyone have any advice as to how to get him to stop playing with himself so much.
Re: DS fascination with private parts
Ditto what others have said. However, you want to make sure you are emphasizing the whole "manners/appropriateness" angle of this problem. Private parts are private. That means they come out ONLY in the bathroom or bedroom, or at the doctor's office. Not at school, and not in front of friends.
If you are firm about this, but stay focused on the manners aspect, you'll set the right tone that helps him figure this out. Be as matter-of-fact as you can. Don't show embarrassment or laugh at him. He'll see through that and know
FWIW, I also noted that when my kids went through this stage, it was worse when they were bored. The most likely time was when they were flopped out in front of the TV or doing that thing where they are sort of playing distractedly but the TV is on in the background. It's easy to let your hands wander down your pants at such a time. I've never known my kids to play with themselves when they were working on a craft project or riding bikes.