What would you do-friends son ?aspergers

[livvyliv]

I feel in a bit of an awkward position.My friends son who is 6 shows some of the traits of a child with aspergers or something similar.I have another friend who's ds was diagnosed a couple of years ago so can recognise the symptoms.
His mum has never mentioned any worries she has but I feel his behaviour is getting worse and other mums are now talking about him behind her back.would you mention something to her?not sure how I would go about it but feel that I would want to know in this situation.
Apparently the school mentioned something when he was in reception but nothing has been said or done about it.
Any experience,advice appreciated.

take her out for coffee, let the conversation come round to her son, let her talk, you listen. If by the end of the coffee she feels you are safe to talk to you'll have achieved something.

I agree with lingle. Does she ever voice concerns about her son? I was in the position of being the mum of a difficult child and it was after I had talked (albeit repeatedly) about my worries about him to a lovely friend that she suggested getting him assessed. The best thing a friend has ever done!! Good luck!