my treatment for breast cancer finished Dec 2015 after 6 lots of chemo, 3weeks radiotherapy and 1 week booster radiotherapy. I did my shoulder exercises for around 4 months after my all clear, no one said how long I should do them and as I had full movement I gradually stopped.  Late 2016 I was experiencing shoulder pain and mentioned it at my check up Jan 2017. I was told to see my GP if it got worse. It did, and now 8 months later, after x rays, ultrasound and MRI scan-no cancer signs - months of physiotherapy, and massage , I was referred for a steroid injection a week ago, mainly because of lack of sleep at night from the pain. The doctor who gave me the injection went on to tell me it is common in cancer survivors after radiotherapy, a well known problem in fact. I will be continuing with physio, and then maybe manipulation under anaesthetic at a later date.

why am I only just finding out it is a recognised problem, why no advice on prevention, if I had to have radiotherapy today I would be unable to get my arm into the position I used to do. 

I wonder what other problems are still to come that could be prevented if forewarned?