As you've already explained the rules to hime, every time you notice him doing this you simply tell him that if he wants to do that to go to his room or the bathroom. Rinse and repeat as necessary
As for the "sex talk", we never had one. I simply answered all of my children's questions about sex (with age-appropriate) information as they came up. The result is that they are fully informed and know they can ask me about anything. I cannot imagine anything more excruciatingly embarrassing for a child than a sex talk if there has been no prior work up to it.
It's actually quite simple You tell her that you know it feels good but that it's a private activity and she should only do it when alone - either in her room or in the bathroom. Every time she starts to do it again, just remind her. no need to make her feel bad.View Thread
So she's masturbating ... this is a perfectly normal activity for a child of her age. She's discovering her body. What you need to do is ensure that she knows it's a private activity and that she should only do it in the privacy of her own room or the bathroom (with door shut, of course). No confrontation is necessary.View Thread
I suspect there may be more to it than this. What is "normal". It's perfectly normal for some women to be completely flat-chested ... just as it is for others to be buxom. Breasts usually start to grow between 10 and 14 which is why I'm surprised you're concerned. Why would a doctor (or even several) talk to you about this as a concern? What other health issues does she have?View Thread
Is this a recent thing? Has she been checked for urinary infections? Is she afraid or too shy to go to the toilet at school? Is there a reason she might be holding it in (until it's too late)?View Thread
Please take her to the doctor immediately! Do not let this child suffer any longer. Not tending to her when she's in pain for a couple of weeks can be considered neglect! Pain is a sign that something is not wrong!View Thread