I'm a bit worried about a friend and her family. They're both stay at home parents and have a 5yo child. Over the weekend I found out some things about how they are struggling with mental health problems and are having issues such as self harm and od episodes. Their child is a very energetic child and often hits and kicks people which seems to make the situation at home worse. Not that it's important but he's recently started cutting out his hair and clothes and screaming at people that he wants to be different.
What I'm wondering is should I tell someone? As a teacher if I heard about a student living like this I would raise a safeguarding issue immediately but this is a friend and I don't want to make their situation worse with children's services. I could hope that school raise it as he's at full time school but I really don't know. What would others do?