I was a late bloomer, I didn't go through puberty till I was almost 17. It is a guy thing in my family. I wouldn't stress it, he will hit puberty when its time. It ***** when ur friends are going through it and ur not, but he will catch up!
Hi, seeing as though you have a family history of late puberty, and counting the fact he is male, i'd assume thats it. if In a years time, as he is approaching 16, these changes havne't occured, i'd consider taking him to see a specialist.