I own a 9 month Boxer Bitch, whom 4 weeks ago  had to have a full Hysterectomy due to suffering Pyometra...I thought she was simply coming into her 1st season( with the discharge coming away).....I had never even heard of this condition before.....has anyone gone through similar?

It isn't common for it to happen at that age BUT it does. One of my freinds young bitch took it at 7 months after first litter. It is something we ALL have to be aware of when keeping entire bitches.

PS if this is the reason you are looking for other siblings then I wouldn't spend too much time and effort.   It is very unlikely any siblings have had this same expereince so young.    It also is nothing to do with poor breeding or the breeder in general.

Blue do you mean after first season? I'm sure you do

Oh Anne, yes after first season :-D opps could have got myself into trouble there :-D   Thanks for pointing out..

Must admit I did a double take :-0

This is awful, your poor baby. Thankfully you noticed and got her to the vets! How is she?