I still get a little confused! I\'m sure I should know the answer to this as I am a regular user of the forum but I still get a bit confused with all the different typws of breast cancer - what is the difference between invasive and non invasive cancer? I was diagnosed with Breast Cancer 18 months ago but can\'t really remember any of the details of my tumour that my consultant gave me because of the shock. I presume it was invasive as he said it was Breast cancer (ie not DCIS) and I had chemo and radio. I aloso know that it was grade 2. I assume that invasive is worse than non-invasive? Sorry to sound ignorant!