Is it bad that I wanted my armpit lump to be cancer?

The answer to this is complicated, and the decision of whether it is bad or not ultimately depends on your own perspective.

It is understandable that you may feel like having cancer would lead to some measure of relief, if only due to the fact that at least you know what's going on and can move forward with treatment options. On the other hand, being diagnosed with cancer comes with serious potential implications for your physical health, mental health, lifestyle choices, and more. It would be an immensely difficult journey for anyone to go down and certainly nothing that should be wished for.

That said, it is important to recognize when something doesn't quite seem right in our bodies so we can seek medical attention as soon as possible. Catching a potentially life-threatening condition early can mean drastic differences in outcomes - from much higher survival rates to avoiding unnecessary surgeries or treatments - so any sort of lump in your armpit deserves immediate attention. Even if it turns out not to be cancerous after all (which hopefully will be the case!), then at least you have peace of mind knowing that there was a thorough assessment done beforehand which deems it non-malignant in nature - allowing you the opportunity take any potential follow up preventive measures necessary or just simply let it go!