Hi Millyelly, 

Welcome to the forum and I'm sorry to hear about your Dad's diagnosis. It's only natural that you should be worried and concerned for your Dad, just as it's natural that they may be trying to protect you from being upset about things. 

If your parents don't want you to attend the appointments with them, then I wonder if it may be worth asking if they would give his Consultant or GP permission to talk with you over the phone about Dad's diagnosis and the treatment he's receiving. 

Would it be worth sitting down and speaking to your Dad on his own, or maybe having a chat with Mum and asking how you can support her whilst your Dad is going through this. Unfortunately you may find that they simply don't want or feel able to share all the information with you at the moment, and if that's the case then I'm sure that you'll do your best to support them both with the information that you do have. 

If you'd like to chat to one of our nurses about your situation then do give them a call. They are available Monday to Friday 9am to 5pm on 0808 800 4040. 

Best wishes, 
Jenn
Cancer Chat moderator